TBR: v23 tool should only look for subcommands of the form jiri-cmd.

MultiPart: 2/2

Change-Id: I0d56a4afe67558d9b604db76801dcf3a0b4982bb
diff --git a/cmdline/cmdline.go b/cmdline/cmdline.go
index 892fa80..4281b52 100644
--- a/cmdline/cmdline.go
+++ b/cmdline/cmdline.go
@@ -321,11 +321,12 @@
 		}
 	}
 	if cmd.LookPath {
-		// Look for a matching executable in PATH.
-		subCmd := cmd.Name + "-" + subName
-		if lookPath(subCmd, env.pathDirs()) {
-			return binaryRunner{subCmd, cmdPath}, subArgs, nil
-		}
+		// TODO(nlacasse): Re-enable this once v23->jiri transition is complete.
+		// // Look for a matching executable in PATH.
+		// subCmd := cmd.Name + "-" + subName
+		// if lookPath(subCmd, env.pathDirs()) {
+		// 	return binaryRunner{subCmd, cmdPath}, subArgs, nil
+		// }
 
 		// Look for a matching executable with prefix in LookPathPrefixes.
 		// TODO(nlacasse): Remove this once the v23->jiri transition is complete.