patch 8.1.0222: errors are reported for "make install"

Problem:    Errors are reported for "make install".
Solution:   Skip missing language files. (Christian Brabandt, closes #3254)

src/installman.sh

@@ -48,6 +48,7 @@ fi
 
 if test $what = "install"; then
    # vim.1
+   if test -r $helpsource/vim$langadd.1; then
       echo installing $destdir/$exename.1
       LC_ALL=C sed -e s+/usr/local/lib/vim+$vimloc+ \
 	      -e s+$vimloc/doc+$helpsubloc+ \
@@ -64,26 +65,33 @@ if test $what = "install"; then
 	      -e 's+$vimloc/\*.ps+$scriptloc/\*.ps+' \
 	      $helpsource/vim$langadd.1 > $destdir/$exename.1
       chmod $manmod $destdir/$exename.1
+   fi
 
    # vimtutor.1
+   if test -r $helpsource/vimtutor$langadd.1; then
       echo installing $destdir/$exename""tutor.1
       LC_ALL=C sed -e s+/usr/local/lib/vim+$vimloc+ \
 	      -e s+$vimloc/tutor+$tutorsubloc+ \
 	      $helpsource/vimtutor$langadd.1 > $destdir/$exename""tutor.1
       chmod $manmod $destdir/$exename""tutor.1
+   fi
 
    # vimdiff.1
+   if test -r $helpsource/vimdiff$langadd.1; then
       echo installing $destdir/$vimdiffname.1
       cp $helpsource/vimdiff$langadd.1 $destdir/$vimdiffname.1
       chmod $manmod $destdir/$vimdiffname.1
+   fi
 
    # evim.1
+   if test -r $helpsource/evim$langadd.1; then
       echo installing $destdir/$evimname.1
       LC_ALL=C sed -e s+/usr/local/lib/vim+$vimloc+ \
 	      -e s+$vimloc/evim.vim+$scriptloc/evim.vim+ \
 	      $helpsource/evim$langadd.1 > $destdir/$evimname.1
       chmod $manmod $destdir/$evimname.1
    fi
+fi
 
 if test $what = "uninstall"; then
    echo Checking for Vim manual pages in $destdir...
@@ -105,7 +113,7 @@ if test $what = "uninstall"; then
    fi
 fi
 
-if test $what = "xxd"; then
+if test $what = "xxd" -a -r "$helpsource/xxd${langadd}.1"; then
    echo installing $destdir/xxd.1
    cp $helpsource/xxd$langadd.1 $destdir/xxd.1
    chmod $manmod $destdir/xxd.1

src/version.c

@@ -798,6 +798,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    222,
 /**/
     221,
 /**/