[gjs: 1/2] heapgraph.py: adjust terminal output style * don't use colors in terminal output * remove unused lab

[Philip Chimento <pchimento src gnome org>]

commit 7f3fad6c552ee461537137b25e8b92394e171db1
Author: Andy Holmes <andrew g r holmes gmail com>
Date:   Mon Apr 9 20:18:07 2018 -0700

    heapgraph.py: adjust terminal output style
    * don't use colors in terminal output
    * remove unused label function

 tools/heapgraph.py | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)
---
diff --git a/tools/heapgraph.py b/tools/heapgraph.py
index d8f8ea6d..0725959f 100755
--- a/tools/heapgraph.py
+++ b/tools/heapgraph.py
@@ -301,7 +301,6 @@ tree_graph_paths = {}
 
 
 class style:
-    DIM = '\033[30m'
     BOLD = '\033[1m'
     ITALIC = '\033[3m'
     UNDERLINE = '\033[4m'
@@ -352,13 +351,6 @@ def get_node_label(graph, addr):
     return label[:50]
 
 
-def get_root_label(graph, root):
-    # This won't work on Windows.
-    #label = re.sub(r'0x[0-9a-f]{8}', '*', graph.root_labels[root])
-    label = graph.root_labels[root]
-    return '(ROOT) {}'.format(label)
-
-
 def output_tree_graph(graph, data, base='', parent=''):
     while data:
         addr, children = data.popitem()
@@ -375,9 +367,9 @@ def output_tree_graph(graph, data, base='', parent=''):
         # Color/Style
         if os.isatty(1):
             if parent:
-                edge = style.DIM + edge + style.END
-            else:
                 edge = style.ITALIC + edge + style.END
+            else:
+                edge = style.BOLD + edge + style.END
 
             orig = style.UNDERLINE + 'jsobj@' + addr + style.END