patch 7.4.1772

Problem:    Installation fails when $GTK_UPDATE_ICON_CACHE is empty.
Solution:   Add quotes. (Kazunobu Kuriyama)

src/Makefile

@@ -2363,7 +2363,7 @@ install-icons:
 	if test -d $(ICON48PATH) -a -w $(ICON48PATH) \
 		-a ! -f $(ICON48PATH)/gvim.png; then \
 	   $(INSTALL_DATA) $(SCRIPTSOURCE)/vim48x48.png $(ICON48PATH)/gvim.png; \
-	   if test -z "$(DESTDIR)" -a -x $(GTK_UPDATE_ICON_CACHE) \
+	   if test -z "$(DESTDIR)" -a -x "$(GTK_UPDATE_ICON_CACHE)" \
 		   -a -w $(ICONTHEMEPATH) \
 		   -a -f $(ICONTHEMEPATH)/index.theme; then \
 		$(GTK_UPDATE_ICON_CACHE) -q $(ICONTHEMEPATH); \
@@ -2381,7 +2381,7 @@ install-icons:
 	   $(INSTALL_DATA) $(SCRIPTSOURCE)/vim.desktop \
 		$(SCRIPTSOURCE)/gvim.desktop \
 		$(DESKTOPPATH); \
-	   if test -z "$(DESTDIR)" -a -x $(UPDATE_DESKTOP_DATABASE); then \
+	   if test -z "$(DESTDIR)" -a -x "$(UPDATE_DESKTOP_DATABASE)"; then \
 	      $(UPDATE_DESKTOP_DATABASE) -q $(DESKTOPPATH); \
 	   fi \
 	fi

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1772,
 /**/
     1771,
 /**/