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-rwxr-xr-xscripts/tracetool.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/tracetool.py b/scripts/tracetool.py
index 629b2593c8..fe9c9e904b 100755
--- a/scripts/tracetool.py
+++ b/scripts/tracetool.py
@@ -70,7 +70,7 @@ def make_group_name(filename):
 
     if dirname == "":
         return "common"
-    return re.sub(r"/|-", "_", dirname)
+    return re.sub(r"[^A-Za-z0-9]", "_", dirname)
 
 def main(args):
     global _SCRIPT