[SSSD] [sssd PR#5684][comment] src/conf_macros.m4: set default value /run for pidpath

[pbrezina]

URL: https://github.com/SSSD/sssd/pull/5684
Title: #5684: src/conf_macros.m4: set default value /run for pidpath

pbrezina commented:
"""
Hi, we certainly welcome your contribution. It just would be good to use a runstatedir which represents the /run directory but at the same time remains configurable instead of hardcoding the value again, if that is something you are willing to work on.
"""

See the full comment at https://github.com/SSSD/sssd/pull/5684#issuecomment-863887378