Fix <command>:help hangs for certs, enter, tags, tar

plugins/certs/commands

@@ -167,7 +167,7 @@ case "$1" in
     ;;
 
   help | certs:help)
-    cat && cat<<EOF
+    cat<<EOF
     certs:add <app> CRT KEY, Add an ssl endpoint to an app. Can also import from a tarball on stdin
     certs:chain CRT [CRT ...], [NOT IMPLEMENTED] Print the ordered and complete chain for the given certificate.
     certs:generate <app> DOMAIN, Generate a key and certificate signing request (and self-signed certificate)

plugins/enter/commands

@@ -33,7 +33,7 @@ case "$1" in
     ;;
 
   help | enter:help)
-    cat && cat<<EOF
+    cat<<EOF
     enter <app> [<container-type> || --container-id <container-id>], Connect to a specific app container
 EOF
     ;;

plugins/tags/commands

@@ -50,7 +50,7 @@ case "$1" in
     ;;
 
   help | tags:help)
-    cat && cat<<EOF
+    cat<<EOF
     tags <app>, List all app image tags
     tags:create <app> <tag>, Add tag to latest running app image
     tags:deploy <app> <tag>, Deploy tagged app image

plugins/tar/commands

@@ -61,7 +61,7 @@ case "$1" in
     ;;
 
   help | tar:help)
-    cat && cat<<EOF
+    cat<<EOF
     tar:in <app>, Reads an tarball containing the app from stdin
     tar:from <app> <url>, Loads an app tarball from url.
 EOF