[gnome-shell-extensions] lint: Also allow camelcase for default signal handlers

[Florian Müllner <fmuellner src gnome org>]

commit 6a25971366c2588c353f5bb4238e2abe5b985b6c
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Jul 2 02:39:17 2019 +0200

    lint: Also allow camelcase for default signal handlers
    
    on_some_signal() is used less than vfunc_some_method(), but it can
    still be useful.

 lint/eslintrc-shell.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/lint/eslintrc-shell.json b/lint/eslintrc-shell.json
index b7bef50..c7be598 100644
--- a/lint/eslintrc-shell.json
+++ b/lint/eslintrc-shell.json
@@ -4,7 +4,7 @@
             "error",
             {
                 "properties": "never",
-                "allow": ["^vfunc_"]
+                "allow": ["^vfunc_", "^on_"]
             }
         ],
         "no-unused-vars": [