Utils: White space replace with another character

[elkoniu]

Function responsible for replacing white space
has wrong log levels set. It can create false positive
critical error messages broadcasted across the system
without any real reason.

This patch adjusts those log levels to be on the debug
level rather than criticar error level.

Resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=1818671

[pbrezina]

I think this is not a correct solution since having the override character in name is in fact a real problem in the environment. It will either make the user unresolvable or even worse it will return different user if you have both names "user_1" and "user 1" in LDAP.

I think the root cause is that this option is set globally for the whole SSSD and ssh_keys is a local user. If it is a local user then we should probably figure out if we can somehow avoid using this override for files provider. If it is an LDAP user then they need to fix it on their side.

[alexey-tikhonov]

Setting flags based on #5264 (comment)