Undo r1.14 to env.c. While it is unusual for environment variables to

start with a '/', they are more supported (by POSIX and SUSv3) than
filenames which have an '=' in them.

Noticed by:	tjr
Approved by:	re (blanket `env')

usr.bin/env/env.1

@@ -445,11 +445,7 @@ utility does not handle values of
 .Ar utility
 which have an equals sign
 .Pq Ql =
-in their name (for obvious reasons), unless the
-.Ar utility
-name begins with a
-.Ql /
-character.
+in their name, for obvious reasons.
 .Pp
 The
 .Nm

usr.bin/env/env.c

@@ -102,8 +102,7 @@ main(int argc, char **argv)
 		if (env_verbosity)
 			fprintf(stderr, "#env clearing environ\n");
 	}
-	for (argv += optind; *argv && (**argv != '/') && (p = strchr(*argv,
-	    '=')); ++argv) {
+	for (argv += optind; *argv && (p = strchr(*argv, '=')); ++argv) {
 		if (env_verbosity)
 			fprintf(stderr, "#env setenv:\t%s\n", *argv);
 		(void)setenv(*argv, ++p, 1);