Case insensitive sort for player skins

Case insensitive compare in quicksort compare function for player names.

Closes #1082

src/client/menu/menu.c

@@ -5650,7 +5650,7 @@ PlayerModelList(void)
         }
 
         // sort skin names alphabetically
-        qsort(s_skinnames[mdl].data, s_skinnames[mdl].num, sizeof(char**), Q_sort_strcomp);
+        qsort(s_skinnames[mdl].data, s_skinnames[mdl].num, sizeof(char**), Q_sort_stricmp);
 
         // at this point we have a valid player model
         s = (char*)malloc(MAX_DISPLAYNAME);

src/common/header/shared.h

@@ -333,6 +333,9 @@ int Q_strlcat(char *dst, const char *src, int size);
 /* Unicode wrappers that also make sure it's a regular file around fopen(). */
 FILE *Q_fopen(const char *file, const char *mode);
 
+/* Comparator function for qsort(), compares case-insensitive strings. */
+int Q_sort_stricmp(const void *s1, const void *s2);
+
 /* Comparator function for qsort(), compares strings. */
 int Q_sort_strcomp(const void *s1, const void *s2);
 

src/common/shared/shared.c

@@ -1188,6 +1188,12 @@ FILE *Q_fopen(const char *file, const char *mode)
 }
 #endif
 
+int
+Q_sort_stricmp(const void *s1, const void *s2)
+{
+	return Q_stricmp(*(char**)s1, *(char**)s2);
+}
+
 int
 Q_sort_strcomp(const void *s1, const void *s2)
 {