Bug 538946: [R-Refactoring] Add use of code style preferences for arg
assign in ExtractFunctionRefactoring

Change-Id: Ifaa65007db2f798636bfebbe195de3c777a90999
diff --git a/r/org.eclipse.statet.r.core/src/org/eclipse/statet/r/core/refactoring/ExtractFunctionRefactoring.java b/r/org.eclipse.statet.r.core/src/org/eclipse/statet/r/core/refactoring/ExtractFunctionRefactoring.java
index 8f34bec..aced078 100644
--- a/r/org.eclipse.statet.r.core/src/org/eclipse/statet/r/core/refactoring/ExtractFunctionRefactoring.java
+++ b/r/org.eclipse.statet.r.core/src/org/eclipse/statet/r/core/refactoring/ExtractFunctionRefactoring.java
@@ -74,6 +74,7 @@
 import org.eclipse.statet.r.core.rsource.ast.RAstNode;
 import org.eclipse.statet.r.core.source.RHeuristicTokenScanner;
 
+
 public class ExtractFunctionRefactoring extends Refactoring {
 	
 	
@@ -403,7 +404,7 @@
 			
 			final String nl= document.getDefaultLineDelimiter();
 			final String defAssign= " <- ";
-			final String argAssign= " = ";
+			final String argAssign= codeStyle.getArgAssignString();
 			
 			RAstNode firstParentChild= this.expressions[0];
 			while (true) {