[gnome-shell] lint: Allow multiple spaces before key values

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 42b77e7ba54e716cad63007fec2d6215236d27c9
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Jan 28 01:40:51 2019 +0100

    lint: Allow multiple spaces before key values
    
    This is useful for imitating namespaced flags/enums:
    
    ```
    const FooFlags = {
        NONE:    0,
        SMEAGLY: 1 << 0,
        SMOGLEY: 1 << 1,
        MUGGLY:  1 << 2
    };
    ```
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/609

 lint/eslintrc-shell.json | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/lint/eslintrc-shell.json b/lint/eslintrc-shell.json
index 194966b13..9c4c96bba 100644
--- a/lint/eslintrc-shell.json
+++ b/lint/eslintrc-shell.json
@@ -7,6 +7,14 @@
                 "allow": ["^vfunc_", "^on_"]
             }
         ],
+        "key-spacing": [
+            "error",
+            {
+                "mode": "minimum",
+                "beforeColon": false,
+                "afterColon": true
+            }
+        ],
         "object-curly-spacing": [
             "error",
             "always"