changed dot testing files

files_for_testing/dot/to_dot_empty_LR.dot

@@ -3,8 +3,8 @@ digraph {
 	compound = true;
 	rankdir = "LR";
 	label="Test"
-	fontname="Helvetica,Arial,sans-serif"
-	node [fontname="Helvetica,Arial,sans-serif" fontsize = 10]
-	edge [fontname="Helvetica,Arial,sans-serif"]
+	fontname="Helvetica"
+	node [fontname="Helvetica" fontsize = 10]
+	edge [fontname="Helvetica"]
 
 }

files_for_testing/dot/to_dot_empty_TB.dot

@@ -3,8 +3,8 @@ digraph {
 	compound = true;
 	rankdir = "TB";
 	label="Test"
-	fontname="Helvetica,Arial,sans-serif"
-	node [fontname="Helvetica,Arial,sans-serif" fontsize = 10]
-	edge [fontname="Helvetica,Arial,sans-serif"]
+	fontname="Helvetica"
+	node [fontname="Helvetica" fontsize = 10]
+	edge [fontname="Helvetica"]
 
 }

files_for_testing/dot/to_dot_full_LR.dot

@@ -3,9 +3,9 @@ digraph {
 	compound = true;
 	rankdir = "LR";
 	label="SceneryTest"
-	fontname="Helvetica,Arial,sans-serif"
-	node [fontname="Helvetica,Arial,sans-serif" fontsize = 10]
-	edge [fontname="Helvetica,Arial,sans-serif"]
+	fontname="Helvetica"
+	node [fontname="Helvetica" fontsize = 10]
+	edge [fontname="Helvetica"]
 
 	i0 [
 		shape=plaintext

files_for_testing/dot/to_dot_full_LR.txt

@@ -3,9 +3,9 @@ digraph {
 	compound = true;
 	rankdir = "LR";
 	label="SceneryTest"
-	fontname="Helvetica,Arial,sans-serif"
-	node [fontname="Helvetica,Arial,sans-serif" fontsize = 10]
-	edge [fontname="Helvetica,Arial,sans-serif"]
+	fontname="Helvetica"
+	node [fontname="Helvetica" fontsize = 10]
+	edge [fontname="Helvetica"]
 
 	i0 [
 		shape=plaintext

files_for_testing/dot/to_dot_full_TB.dot

@@ -3,9 +3,9 @@ digraph {
 	compound = true;
 	rankdir = "TB";
 	label="SceneryTest"
-	fontname="Helvetica,Arial,sans-serif"
-	node [fontname="Helvetica,Arial,sans-serif" fontsize = 10]
-	edge [fontname="Helvetica,Arial,sans-serif"]
+	fontname="Helvetica"
+	node [fontname="Helvetica" fontsize = 10]
+	edge [fontname="Helvetica"]
 
 	i0 [
 		shape=plaintext

files_for_testing/dot/to_dot_w_node_LR.dot

@@ -3,9 +3,9 @@ digraph {
 	compound = true;
 	rankdir = "LR";
 	label="SceneryTest"
-	fontname="Helvetica,Arial,sans-serif"
-	node [fontname="Helvetica,Arial,sans-serif" fontsize = 10]
-	edge [fontname="Helvetica,Arial,sans-serif"]
+	fontname="Helvetica"
+	node [fontname="Helvetica" fontsize = 10]
+	edge [fontname="Helvetica"]
 
 	i0 [
 		shape=plaintext

files_for_testing/dot/to_dot_w_node_TB.dot

@@ -3,9 +3,9 @@ digraph {
 	compound = true;
 	rankdir = "TB";
 	label="SceneryTest"
-	fontname="Helvetica,Arial,sans-serif"
-	node [fontname="Helvetica,Arial,sans-serif" fontsize = 10]
-	edge [fontname="Helvetica,Arial,sans-serif"]
+	fontname="Helvetica"
+	node [fontname="Helvetica" fontsize = 10]
+	edge [fontname="Helvetica"]
 
 	i0 [
 		shape=plaintext