Hopefully the last of the spelling fixes :>

git-svn-id: https://svn.musicpd.org/mpd/trunk@3923 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/main.c

@@ -220,7 +220,7 @@ void changeToUser() {
                  * (must be done before we change our uid)
                  */
                 if (initgroups(param->value, userpwd->pw_gid) == -1) {
-                        WARNING("cannot init suplementary groups "
+                        WARNING("cannot init supplementary groups "
                                         "of user \"%s\" at line %i: %s\n", 
 					param->value, param->line, 
                                         strerror(errno));