patch 8.2.0176: generating os headers does not work for Swedish

Problem:    Generating os headers does not work for Swedish.
Solution:   Set the locale to C. (Christian Brabandt, closes #5258)

src/osdef.sh

@@ -18,6 +18,11 @@ if test -z "$srcdir"; then
   srcdir=.
 fi
 
+# Make sure collation works as expected
+# swedish range [a-z] does not match 'w'
+export LC_COLLATE=C
+export LC_ALL=
+
 rm -f core* *.core
 
 cat << EOF > osdef0.c

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    176,
 /**/
     175,
 /**/