fix(ssh): fix wrong quoting inside compgen -W

This is a regression in
#1025.

Reference:
f92ef41#diff-ea186058eaccb2fe1f557ed71d7cf58a9220a37ed3ab7fae9d2b0c99e48029deR11

completions/ssh

@@ -8,7 +8,7 @@ _comp_cmd_ssh__compgen_queries()
         key-plain key-sig protocol-version compression sig ciphers macs
         kexalgorithms pubkeyacceptedkeytypes hostkeyalgorithms
         hostbasedkeytypes hostbasedacceptedkeytypes)
-    _comp_compgen -c "${cur,,}" -U ret -- -W '"${ret[@]}" help"'
+    _comp_compgen -c "${cur,,}" -U ret -- -W '"${ret[@]}" help'
 }
 
 # @since 2.12