[maven-plugin] fix strictSpec parameter without alias (#3095)

* Revert "[maven-plugin] fix strictSpec parameter (#3071)"

This reverts commit 8c9a151.

* [maven-plugin] fix strictSpec parameter without alias

Author: jmini

modules/openapi-generator-maven-plugin/src/main/java/org/openapitools/codegen/plugin/CodeGenMojo.java

@@ -244,8 +244,8 @@ public class CodeGenMojo extends AbstractMojo {
     /**
      * To treat a document strictly against the spec.
      */
-    @Parameter(name = "strictSpecBehavior", alias = "strictSpec", property = "openapi.generator.maven.plugin.strictSpec", required = false)
-    private Boolean strictSpecBehavior;
+    @Parameter(name = "strictSpec", property = "openapi.generator.maven.plugin.strictSpec", required = false)
+    private Boolean strictSpec;
 
     /**
      * To generate alias (array, map) as model
@@ -471,8 +471,8 @@ public void execute() throws MojoExecutionException {
                 configurator.setValidateSpec(!skipValidateSpec);
             }
 
-            if (strictSpecBehavior != null) {
-                configurator.setStrictSpecBehavior(strictSpecBehavior);
+            if (strictSpec != null) {
+                configurator.setStrictSpecBehavior(strictSpec);
             }
 
             if (logToStderr != null) {