Adjusting a comment, and being clearer about when to break.

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4890 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

 2014-05-15  Benno Schulenberg  <bensberg@justemail.net>
 	* doc/syntax/c.nanorc: Improve the magic regex, plus tweaks.
+	* src/color.c (color_update): Adjust comment, and be clear.
 
 2014-05-14  Benno Schulenberg  <bensberg@justemail.net>
 	* src/winio.c (edit_draw): Poke a non-breaking space into the last

src/color.c

@@ -188,7 +188,7 @@ void color_update(void)
 
     /* If we didn't specify a syntax override string, or if we did and
      * there was no syntax by that name, get the syntax based on the
-     * file extension, then try magic, and then look in the header. */
+     * file extension, then try the headerline, and then try magic. */
     if (openfile->colorstrings == NULL) {
 	for (tmpsyntax = syntaxes; tmpsyntax != NULL;
 		tmpsyntax = tmpsyntax->next) {
@@ -310,7 +310,7 @@ void color_update(void)
 		    if (not_compiled)
 			nfreeregex(&e->ext);
 		}
-		if (openfile->syntax)
+		if (openfile->syntax != NULL)
 		    break;
 	    }
 	    if (stat(openfile->filename, &fileinfo) == 0)