Fix tab/space inconsistencies in stk_msg_dialog.xml

Replace tabs with 4 spaces.

Change-Id: I97b6d3204062da4789569dc675c817c10154b4d9
diff --git a/res/layout/stk_msg_dialog.xml b/res/layout/stk_msg_dialog.xml
index c1c163c..1838337 100644
--- a/res/layout/stk_msg_dialog.xml
+++ b/res/layout/stk_msg_dialog.xml
@@ -41,35 +41,35 @@
         </ScrollView>
     </LinearLayout>
 
-	<LinearLayout android:id="@+id/buttonPanel"
-	    android:layout_width="match_parent"
-	    android:layout_height="wrap_content"
-	    android:minHeight="54dip"
-	    android:orientation="vertical" >
-	    <LinearLayout
-	        android:layout_width="match_parent"
-	        android:layout_height="wrap_content"
-	        android:orientation="horizontal"
+    <LinearLayout android:id="@+id/buttonPanel"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:minHeight="54dip"
+        android:orientation="vertical" >
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
             android:background="@color/ltgrey"
-	        android:paddingTop="4dip"
-	        android:paddingLeft="2dip"
-	        android:paddingRight="2dip" >
-	        <Button
-	            android:id="@+id/button_cancel"
-	            android:layout_width="wrap_content"
-	            android:layout_height="wrap_content"
-	            android:layout_gravity="left"
-	            android:layout_weight="1"
-	            android:maxLines="2"
-	            android:text="@string/button_cancel" />
-	        <Button
-	            android:id="@+id/button_ok"
-	            android:layout_width="wrap_content"
-	            android:layout_height="wrap_content"
-	            android:layout_gravity="right"
-	            android:layout_weight="1"
-	            android:maxLines="2"
-	            android:text="@string/button_ok" />
-	       </LinearLayout>
+            android:paddingTop="4dip"
+            android:paddingLeft="2dip"
+            android:paddingRight="2dip" >
+            <Button
+                android:id="@+id/button_cancel"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="left"
+                android:layout_weight="1"
+                android:maxLines="2"
+                android:text="@string/button_cancel" />
+            <Button
+                android:id="@+id/button_ok"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="right"
+                android:layout_weight="1"
+                android:maxLines="2"
+                android:text="@string/button_ok" />
+           </LinearLayout>
     </LinearLayout>
 </LinearLayout>