File groovy-source-levels.patch of Package groovy.15388

--- groovy-2.4.16/build.gradle	2019-12-09 11:04:16.703039296 +0100
+++ groovy-2.4.16/build.gradle	2019-12-09 11:06:08.723653849 +0100
@@ -41,8 +41,8 @@
     apply plugin: 'java'
 
     buildDir = 'target'
-    sourceCompatibility = 1.6
-    targetCompatibility = 1.6
+    sourceCompatibility = 1.7
+    targetCompatibility = 1.7
 
     group = 'org.codehaus.groovy'
     version = groovyVersion