make color_to_short() actually return a short

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2921 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

src/proto.h

@@ -429,7 +429,7 @@ void rcfile_error(const char *msg, ...);
 char *parse_next_word(char *ptr);
 char *parse_argument(char *ptr);
 #ifdef ENABLE_COLOR
-int color_to_short(const char *colorname, bool *bright);
+short color_to_short(const char *colorname, bool *bright);
 char *parse_next_regex(char *ptr);
 bool nregcomp(regex_t *preg, const char *regex, int eflags);
 void parse_syntax(char *ptr);

src/rcfile.c

@@ -180,7 +180,7 @@ char *parse_argument(char *ptr)
 }
 
 #ifdef ENABLE_COLOR
-int color_to_short(const char *colorname, bool *bright)
+short color_to_short(const char *colorname, bool *bright)
 {
     short mcolor = -1;