[SSSD] [sssd PR#677][comment] pcre: port to pcre2

[thalman]

URL: https://github.com/SSSD/sssd/pull/677
Title: #677: pcre: port to pcre2

thalman commented:
"""
I fixed formatting/space typos as well as errno_t definition issue.
"""

See the full comment at https://github.com/SSSD/sssd/pull/677#issuecomment-508025769