Change closure parameter name to parentName so it is distinct from class field name

Exception now communicates the correct relationship between child and parent profiles
It was displaying the parent profile name twice

Author: jamesfredley

grails-shell/src/main/groovy/org/grails/cli/profile/AbstractProfile.groovy

@@ -349,10 +349,10 @@ abstract class AbstractProfile implements Profile {
 
     @Override
     public Iterable<Profile> getExtends() {
-        return parentNames.collect() { String name ->
-            def parent = profileRepository.getProfile(name, true)
+        return parentNames.collect() { String parentName ->
+            def parent = profileRepository.getProfile(parentName, true)
             if(parent == null) {
-                throw new IllegalStateException("Profile [$name] declares an invalid dependency on parent profile [$name]")
+                throw new IllegalStateException("Profile [$name] declares an invalid dependency on parent profile [$parentName]")
             }
             return parent
         }