musl is dumb

strftime sets errno to 22 for some reason in some cases
it turns out this is fine with the standard
but it's still stupid as fuck and i'm not gonna work around it

src/date.c

@@ -31,9 +31,7 @@ int main(int argc, char *argv[]) {
   if (argc > 1 && argv[1][0] == '+') {
     outformat = &argv[1][1];
 dodate:
-    errno = 0;
     strftime(outbuf, sizeof(outbuf), outformat, tm);
-    printf("format was: <%s>      errno %d: %s\n", outformat, errno, strerror(errno));
   }
   else {
     parsedate(argv[1]);