patch 8.0.1121: can uncheck executables in MS-Windows installer

Problem:    Can uncheck executables in MS-Windows installer.
Solution:   Make the choice read-only. (Ken Takata, closes #2106)

Author: brammool

nsis/gvim.nsi

@@ -179,7 +179,7 @@ FunctionEnd
 
 ##########################################################
 Section "Vim executables and runtime files"
-	SectionIn 1 2 3
+	SectionIn 1 2 3 RO
 
 	# we need also this here if the user changes the instdir
 	StrCpy $0 "$INSTDIR\vim${VER_MAJOR}${VER_MINOR}"

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1121,
 /**/
     1120,
 /**/