Don't strip a leading ./ from the path for the cd builtin to avoid interpreting

.//dir as /dir.  Rather strip it only for the purpose of checking if the
directory path should be printed.

PR:		88813
Submitted by:	Josh Elsasser
Patch from:	NetBSD (cd.c rev 1.38)
MFC after:	2 weeks

bin/sh/cd.c

@@ -124,7 +124,8 @@ cdcmd(int argc, char **argv)
 				 * XXX - rethink
 				 */
 				if (p[0] == '.' && p[1] == '/' && p[2] != '\0')
-					p += 2;
+					print = strcmp(p + 2, dest);
+				else
 					print = strcmp(p, dest);
 			}
 			if (docd(p, print, phys) >= 0)