add printf attributes to printf func
This fixes build warnings when using clang:
.../metrics/metrics_library.cc:235:30: warning: format string is not a string literal [-Wformat-nonliteral]
format, args);
^~~~~~
BUG=None
TEST=`FEATURES=test emerge-x86-alex platform2` works & doesn't warn
TEST=`FEATURES=test emerge-daisyplatform2` works & doesn't warn
TEST=`FEATURES=test emerge-lumpy platform2` works & doesn't warn
Change-Id: I03bfffe328eb1f1742de5b3fe722209e6e91f4bc
Reviewed-on: https://chromium-review.googlesource.com/180930
Reviewed-by: Chris Sosa <sosa@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
1 file changed
