patch 9.0.0124: code has more indent than needed

Problem:    Code has more indent than needed.
Solution:   Use continue and return statements. (closes #10824)

src/arglist.c

@@ -1241,8 +1241,8 @@ arg_all(void)
 	for (idx = 0; idx < ARGCOUNT; ++idx)
 	{
 	    p = alist_name(&ARGLIST[idx]);
-	    if (p != NULL)
-	    {
+	    if (p == NULL)
+		continue;
 	    if (len > 0)
 	    {
 		// insert a space in between names
@@ -1268,7 +1268,6 @@ arg_all(void)
 		++len;
 	    }
 	}
-	}
 
 	// second time: break here
 	if (retval != NULL)

src/diff.c

@@ -678,9 +678,11 @@ diff_redraw(
 
     need_diff_redraw = FALSE;
     FOR_ALL_WINDOWS(wp)
-	// when closing windows or wiping buffers skip invalid window
-	if (wp->w_p_diff && buf_valid(wp->w_buffer))
     {
+	// when closing windows or wiping buffers skip invalid window
+	if (!wp->w_p_diff || !buf_valid(wp->w_buffer))
+	    continue;
+
 	redraw_win_later(wp, SOME_VALID);
 	if (wp != curwin)
 	    wp_other = wp;
@@ -688,8 +690,8 @@ diff_redraw(
 	if (dofold && foldmethodIsDiff(wp))
 	    foldUpdateAll(wp);
 #endif
-	    // A change may have made filler lines invalid, need to take care
-	    // of that for other windows.
+	// A change may have made filler lines invalid, need to take care of
+	// that for other windows.
 	n = diff_check(wp, wp->w_topline);
 	if ((wp != curwin && wp->w_topfill > 0) || n > 0)
 	{

src/edit.c

@@ -3749,7 +3749,8 @@ ins_ctrl_(void)
     static int
 ins_start_select(int c)
 {
-    if (km_startsel)
+    if (!km_startsel)
+	return FALSE;
     switch (c)
     {
 	case K_KHOME:
@@ -3775,8 +3776,8 @@ ins_start_select(int c)
 	case K_S_DOWN:
 	case K_S_END:
 	case K_S_HOME:
-		// Start selection right away, the cursor can move with
-		// CTRL-O when beyond the end of the line.
+	    // Start selection right away, the cursor can move with CTRL-O when
+	    // beyond the end of the line.
 	    start_selection();
 
 	    // Execute the key in (insert) Select mode.

src/help.c

@@ -1220,8 +1220,9 @@ do_helptags(char_u *dirname, int add_help_tags, int ignore_writeerr)
     for (i = 0; i < filecount; ++i)
     {
 	len = (int)STRLEN(files[i]);
-	if (len > 4)
-	{
+	if (len <= 4)
+	    continue;
+
 	if (STRICMP(files[i] + len - 4, ".txt") == 0)
 	{
 	    // ".txt" -> language "en"
@@ -1253,7 +1254,6 @@ do_helptags(char_u *dirname, int add_help_tags, int ignore_writeerr)
 	    ((char_u *)ga.ga_data)[ga.ga_len++] = lang[1];
 	}
     }
-    }
 
     // Loop over the found languages to generate a tags file for each one.
     for (j = 0; j < ga.ga_len; j += 2)

src/normal.c

@@ -1917,8 +1917,9 @@ check_scrollbind(linenr_T topline_diff, long leftcol_diff)
     {
 	curbuf = curwin->w_buffer;
 	// skip original window and windows with 'noscrollbind'
-	if (curwin != old_curwin && curwin->w_p_scb)
-	{
+	if (curwin == old_curwin || !curwin->w_p_scb)
+	    continue;
+
 	// do the vertical scroll
 	if (want_ver)
 	{
@@ -1956,7 +1957,6 @@ check_scrollbind(linenr_T topline_diff, long leftcol_diff)
 	    leftcol_changed();
 	}
     }
-    }
 
     // reset current-window
     VIsual_select = old_VIsual_select;

src/syntax.c

@@ -1485,9 +1485,10 @@ syn_stack_equal(synstate_T *sp)
     reg_extmatch_T	*six, *bsx;
 
     // First a quick check if the stacks have the same size end nextlist.
-    if (sp->sst_stacksize == current_state.ga_len
-	    && sp->sst_next_list == current_next_list)
-    {
+    if (sp->sst_stacksize != current_state.ga_len
+	    || sp->sst_next_list != current_next_list)
+	return FALSE;
+
     // Need to compare all states on both stacks.
     if (sp->sst_stacksize > SST_FIX_STATES)
 	bp = SYN_STATE_P(&(sp->sst_union.sst_ga));
@@ -1499,32 +1500,27 @@ syn_stack_equal(synstate_T *sp)
 	// If the item has another index the state is different.
 	if (bp[i].bs_idx != CUR_STATE(i).si_idx)
 	    break;
-	    if (bp[i].bs_extmatch != CUR_STATE(i).si_extmatch)
-	    {
-		// When the extmatch pointers are different, the strings in
-		// them can still be the same.  Check if the extmatch
-		// references are equal.
+	if (bp[i].bs_extmatch == CUR_STATE(i).si_extmatch)
+	    continue;
+	// When the extmatch pointers are different, the strings in them can
+	// still be the same.  Check if the extmatch references are equal.
 	bsx = bp[i].bs_extmatch;
 	six = CUR_STATE(i).si_extmatch;
-		// If one of the extmatch pointers is NULL the states are
-		// different.
+	// If one of the extmatch pointers is NULL the states are different.
 	if (bsx == NULL || six == NULL)
 	    break;
 	for (j = 0; j < NSUBEXP; ++j)
 	{
-		    // Check each referenced match string. They must all be
-		    // equal.
+	    // Check each referenced match string. They must all be equal.
 	    if (bsx->matches[j] != six->matches[j])
 	    {
-			// If the pointer is different it can still be the
-			// same text.  Compare the strings, ignore case when
-			// the start item has the sp_ic flag set.
-			if (bsx->matches[j] == NULL
-				|| six->matches[j] == NULL)
+		// If the pointer is different it can still be the same text.
+		// Compare the strings, ignore case when the start item has the
+		// sp_ic flag set.
+		if (bsx->matches[j] == NULL || six->matches[j] == NULL)
 		    break;
 		if ((SYN_ITEMS(syn_block)[CUR_STATE(i).si_idx]).sp_ic
-				? MB_STRICMP(bsx->matches[j],
-							 six->matches[j]) != 0
+			? MB_STRICMP(bsx->matches[j], six->matches[j]) != 0
 			: STRCMP(bsx->matches[j], six->matches[j]) != 0)
 		    break;
 	    }
@@ -1532,11 +1528,7 @@ syn_stack_equal(synstate_T *sp)
 	if (j != NSUBEXP)
 	    break;
     }
-	}
-	if (i < 0)
-	    return TRUE;
-    }
-    return FALSE;
+    return i < 0 ? TRUE : FALSE;
 }
 
 /*

src/version.c

@@ -735,6 +735,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    124,
 /**/
     123,
 /**/

src/window.c

@@ -2004,11 +2004,10 @@ win_equal_rec(
 		next_curwin_size = -1;
 		FOR_ALL_FRAMES(fr, topfr->fr_child)
 		{
-		    // If 'winfixwidth' set keep the window width if
-		    // possible.
+		    if (!frame_fixed_width(fr))
+			continue;
+		    // If 'winfixwidth' set keep the window width if possible.
 		    // Watch out for this window being the next_curwin.
-		    if (frame_fixed_width(fr))
-		    {
 		    n = frame_minwidth(fr, NOWIN);
 		    new_size = fr->fr_width;
 		    if (frame_has_win(fr, next_curwin))
@@ -2030,7 +2029,6 @@ win_equal_rec(
 		    }
 		    fr->fr_newwidth = new_size;
 		}
-		}
 		if (next_curwin_size == -1)
 		{
 		    if (!has_next_curwin)
@@ -2145,11 +2143,11 @@ win_equal_rec(
 		next_curwin_size = -1;
 		FOR_ALL_FRAMES(fr, topfr->fr_child)
 		{
+		    if (!frame_fixed_height(fr))
+			continue;
 		    // If 'winfixheight' set keep the window height if
 		    // possible.
 		    // Watch out for this window being the next_curwin.
-		    if (frame_fixed_height(fr))
-		    {
 		    n = frame_minheight(fr, NOWIN);
 		    new_size = fr->fr_height;
 		    if (frame_has_win(fr, next_curwin))
@@ -2171,7 +2169,6 @@ win_equal_rec(
 		    }
 		    fr->fr_newheight = new_size;
 		}
-		}
 		if (next_curwin_size == -1)
 		{
 		    if (!has_next_curwin)
@@ -3752,8 +3749,8 @@ close_others(
     for (wp = firstwin; win_valid(wp); wp = nextwp)
     {
 	nextwp = wp->w_next;
-	if (wp != curwin)		// don't close current window
-	{
+	if (wp == curwin)		// don't close current window
+	    continue;
 
 	// Check if it's allowed to abandon this window
 	r = can_abandon(wp->w_buffer, forceit);
@@ -3779,9 +3776,7 @@ close_others(
 #endif
 		continue;
 	}
-	    win_close(wp, !buf_hide(wp->w_buffer)
-					       && !bufIsChanged(wp->w_buffer));
-	}
+	win_close(wp, !buf_hide(wp->w_buffer) && !bufIsChanged(wp->w_buffer));
     }
 
     if (message && !ONE_WINDOW)
@@ -5708,6 +5703,7 @@ frame_setheight(frame_T *curfrp, int height)
 
     if (curfrp->fr_parent == NULL)
     {
+	// topframe: can only change the command line
 	if (height > ROWS_AVAIL)
 	    // If height is greater than the available space, try to create
 	    // space for the frame by reducing 'cmdheight' if possible, while