posix: mkdirat errno fix

[GBuella]

This change is 

[codecov[bot]]

Codecov Report

Merging #394 into master will decrease coverage by 0.04%. The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #394      +/-   ##
==========================================
- Coverage    76.9%   76.86%   -0.05%     
==========================================
  Files          67       67              
  Lines        8276     8276              
  Branches     1665     1665              
==========================================
- Hits         6365     6361       -4     
- Misses       1494     1497       +3     
- Partials      417      418       +1

Flag	Coverage Δ
#ltp_tests	46.44% <0%> (-0.01%)	:arrow_down:
#sqlite_tests	45.14% <0%> (-0.02%)	:arrow_down:
#tests_antool	14.71% <0%> (ø)	:arrow_up:
#tests_posix_multi_threaded	24.98% <0%> (-0.05%)	:arrow_down:
#tests_posix_single_threaded	54.21% <100%> (+0.02%)	:arrow_up:
#tests_preload	44.67% <0%> (ø)	:arrow_up:

Impacted Files	Coverage Δ
src/libpmemfile-posix/mkdir.c	97.05% <100%> (ø)	:arrow_up:
src/libpmemfile-posix/dir.c	85.01% <0%> (-0.5%)	:arrow_down:
src/libpmemfile-posix/data.c	94.02% <0%> (-0.4%)	:arrow_down:
src/libpmemfile-posix/inode.c	88.31% <0%> (-0.35%)	:arrow_down:

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[krzycz]

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Reviewed 2 of 2 files at r1. Review status: all files reviewed at latest revision, all discussions resolved.

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Comments from Reviewable

[marcinslusarz]

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Reviewed 1 of 2 files at r1, 1 of 1 files at r2. Review status: all files reviewed at latest revision, all discussions resolved.

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Comments from Reviewable