Line-number information is wrong in error-messages from Tools.AutoDoc.CExtractor.
Imported from http://bugzilla.roxen.com/bugzilla/show_bug.cgi?id=1003
Reported by @grubba
$ make builtin_functions.xml
Extracting from "/home/grubba/src/Pike7.1/src/builtin_functions.c"...
parseError!
/home/grubba/src/Pike7.1/src/builtin_functions.c:1: Pike parser error:
expected ")", got "0"
The line number above ought to have been 85.