double to single quotes

scripts/testbed/_dump_fnames.py

@@ -26,7 +26,7 @@ def main():
     fnames = {}
     for f in idautils.Functions():
         fname = idc.get_name(f)
-        if fname.startswith("sub_"):
+        if fname.startswith('sub_'):
             continue
 
         name_demangled = idc.demangle_name(fname, INF_SHORT_DN_ATTR)
@@ -35,12 +35,12 @@ def main():
 
         fnames[f] = fname
 
-    with open(idc.ARGV[1], "w") as f:
+    with open(idc.ARGV[1], 'w') as f:
         json.dump(fnames, f)
 
     # exit IDA
     idc.qexit(0)
 
 
-if __name__ == "__main__":
+if __name__ == '__main__':
     main()