The query does not need to be parsed for it to be canonicalized and the parsing
uses the PCRE2 library. The regular expressions were changed so that only one
call to the function which replaces literal unquoted values is made.
72662
72702
72724
73397
73410
73414
73422
75424
75748
75789
75938
75939
Also includes a fix to a bug caused by a previous Coverity error change in canonizer.c
Main assumed multi-byte characters in memory allocation but not outside of it so I removed that code and made it consistently assume single-byte characters.
Terminating character was added always to the last byte of string buffer regardless of the length of the string. Removed it and replaced malloc with calloc.
Moved variable introductions from the middle of the function to the beginning of it.
String buffer allocation didn't allocate space for terminating char. It also assumed that character size may vary but the rest of the code didn't support multi-byte characters so I changed it consistently assume single-byte characters.
