BF - need bars around 'l's for longtable columns

Initial processor just replaced L with l, but we need the bars (|l|l|)
to make a nice-looking table

Author: matthew-brett

tools/fix_longtable.py

@@ -8,7 +8,9 @@
     r"longtable}{(L+)}")
 
 def replacer(match):
-    return r"longtable}{%s}" % match.groups()[0].lower()
+    args =  '|' + 'l|' * len(match.groups()[0])
+    return "longtable}{%s}" % args
+
 
 if len(sys.argv) != 2:
     raise RuntimeError("Enter path to tex file only")