tests: fix some test message mismatch

Author: stephenjason89

README.md

@@ -26,6 +26,10 @@ This plugin intends to support linting of ES2015+ (ES6+) import/export syntax, a
 💡 Manually fixable by [editor suggestions](https://eslint.org/docs/latest/use/core-concepts#rule-suggestions).\
 ❌ Deprecated.
 
+| Name                                   | Description                                                                                    | 💼 | ⚠️ | 🚫 | 🔧 | 💡 | ❌  |
+| :------------------------------------- | :--------------------------------------------------------------------------------------------- | :- | :- | :- | :- | :- | :- |
+| [extensions](docs/rules/extensions.md) | Enforce that import statements either always include or never include allowed file extensions. |    |    |    | 🔧 |    |    |
+
 ### Helpful warnings
 
 | Name                                                                   | Description                                                                           | 💼   | ⚠️    | 🚫 | 🔧 | 💡 | ❌  |
@@ -69,12 +73,6 @@ This plugin intends to support linting of ES2015+ (ES6+) import/export syntax, a
 | [no-useless-path-segments](docs/rules/no-useless-path-segments.md)       | Forbid unnecessary path segments in import and require statements.                              |      |    |    | 🔧 |    |    |
 | [no-webpack-loader-syntax](docs/rules/no-webpack-loader-syntax.md)       | Forbid webpack loader syntax in imports.                                                        |      |    |    |    |    |    |
 
-### Static Analysis
-
-| Name                                   | Description                                                                                    | 💼 | ⚠️ | 🚫 | 🔧 | 💡 | ❌  |
-| :------------------------------------- | :--------------------------------------------------------------------------------------------- | :- | :- | :- | :- | :- | :- |
-| [extensions](docs/rules/extensions.md) | Enforce that import statements either always include or never include allowed file extensions. |    |    |    | 🔧 |    |    |
-
 ### Style guide
 
 | Name                                                                             | Description                                                                | 💼 | ⚠️    | 🚫 | 🔧 | 💡 | ❌  |

src/rules/extensions.js

@@ -135,7 +135,7 @@ module.exports = {
     },
     messages: {
       missingExtension: 'Missing file extension for "{{importPath}}" (expected {{expected}}).',
-      unexpectedExtension: 'Unexpected file extension "{{extension}}" in import of "{{importPath}}".',
+      unexpectedExtension: 'Unexpected use of file extension "{{extension}}" for "{{importPath}}"',
     },
   },