Add is to the list of allowed short names.

In ElementNameMinimalLengthSniff

Author: gmazzap

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Not released
 - Fix false positive in `ReturnTypeDeclarationSniff` with nullable types.
+- Add `is` to the list of allowed short names.
 
 ## 0.10.0
 - Renamed sniffs namespace (**breaking change**).

Inpsyde/Sniffs/CodeQuality/ElementNameMinimalLengthSniff.php

@@ -44,6 +44,7 @@ final class ElementNameMinimalLengthSniff implements Sniff
         'go',
         'it',
         'db',
+        'is',
     ];
 
     /**

docs/inpsyde-rules-configuration.md

@@ -16,8 +16,10 @@ That is possible via `minLength` property, e.g.:
 It is also possible to configure the whitelist of allowed names with less than 3 (or whatever
 the minimal length is configured to) characters.
 By default the whitelisted names are:
+
  - `'i'`
  - `'id'`
+ - `'is'`
  - `'to'`
  - `'up'`
  - `'ok'`