Fix a typo in a diagnostic message (issue 38449)

Change-Id: Ie4f27420d5f1b203501581a7cb71640cce84c46d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/117762
Reviewed-by: Konstantin Shcheglov <[email protected]>
Commit-Queue: Brian Wilkerson <[email protected]>

Author: bwilkerson

pkg/analyzer/lib/src/error/codes.dart

@@ -5435,10 +5435,8 @@ class StaticWarningCode extends AnalyzerErrorCode {
    * 2: the number of additional not initialized variables that aren't listed
    */
   static const StaticWarningCode FINAL_NOT_INITIALIZED_CONSTRUCTOR_3_PLUS =
-      const StaticWarningCode(
-          'FINAL_NOT_INITIALIZED_CONSTRUCTOR_3',
-          "The final variables '{0}', '{1}' and '{2}' more must be "
-              "initialized.",
+      const StaticWarningCode('FINAL_NOT_INITIALIZED_CONSTRUCTOR_3',
+          "The final variables '{0}', '{1}' and {2} more must be initialized.",
           correction: "Try adding initializers for the fields.");
 
   /**