https://bugs.gentoo.org/836906

--- evil-1.2.14/evil-ex.el
+++ evil-1.2.14/evil-ex.el
@@ -592,7 +592,7 @@
 
 (define-obsolete-function-alias
   'evil-ex-shell-command-completion-at-point
-  'comint-completion-at-point)
+  'comint-completion-at-point "")
 
 (evil-ex-define-argument-type shell
   "Shell argument type, supports completion."