Respect locale settings.

MFC after:	2 weeks

bin/rm/rm.c

@@ -50,6 +50,7 @@ __FBSDID("$FreeBSD$");
 #include <fcntl.h>
 #include <fts.h>
 #include <grp.h>
+#include <locale.h>
 #include <pwd.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -86,6 +87,8 @@ main(int argc, char *argv[])
 	int ch;
 	char *p;
 
+	(void)setlocale(LC_ALL, "");
+
 	/*
 	 * Test for the special case where the utility is called as
 	 * "unlink", for which the functionality provided is greatly