installed as readable files).

This will return the ID directly, not hold it as a class, which will
have smaller memory footprint.

On some systems, the output of "wc -l" is left-justified.  On
others (the ones on which the test fails), the output is indented.
Replacing "cut" with "awk" fixes this.

Conflicts:
	src/lib/log/tests/Makefile.am
	src/lib/log/tests/logger_unittest.cc
	src/lib/log/tests/run_unittests.cc

The ofstream closes automatically when destroyed.

... and convert from using TEST_F to TEST.

... and correct error in previous commit.

Also add test to check that an exception is generated if there is
a failure to access a local message file.

add comment
change from unused-parameter to unused-variable
remove additional change as was not needed.

discussed on jabber
and I tested directly with clang on Mac OS X (where problem
was seen).