MFC r293312:
Make cap_mkdb and services_mkdb file operations sync
Similar fix was done for passwd and group operations in r285050. When a
temporary file is created and then renamed to replace official file there
are no checks to make sure data was written to disk and if a power cycle
happens at this time, system can end up with a 0 length file
Approved by: bapt
Sponsored by: Netgate
Differential Revision: https://reviews.freebsd.org/D2982
git-svn-id: svn://svn.freebsd.org/base/stable/10@293929
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projects / FreeBSD / stable / 10.git / commit