fix: linux strerror compatibility

[apatel896]

improve test case coverage by removing EDC* prefix and period suffix from error messages. Improvement should be around +30-ish extra test cases pass (newest version of zoslib zopen2 branch needed)

[IgorTodorovskiIBM]

I'm seeing this in the jenkins output:

awk: line 0 (NR=148): FSUM9393 line too long: limit 20000
make[4]: *** [Makefile:23317: tests/test-suite.log] Error 1
make[4]: Leaving directory '/data/workspace/Port-Build/coreutils/coreutils-9.7'
make[3]: *** [Makefile:23425: check-TESTS] Error 2
make[3]: Leaving directory '/data/workspace/Port-Build/coreutils/coreutils-9.7'
make[2]: *** [Makefile:23685: check-am] Error 2
make[2]: Leaving directory '/data/workspace/Port-Build/coreutils/coreutils-9.7'
make[1]: *** [Makefile:23202: check-recursive] Error 1
make[1]: Leaving directory '/data/workspace/Port-Build/coreutils/coreutils-9.7'
make: *** [Makefile:23687: check] Error 2
Unable to open  for read.
VERBOSE: Test status:
actualFailures:0
totalTests:1
expectedFailures:46
VERBOSE: Test results: 1 tests pass out of 1 test

Did you see this when running zopen build manually?

[IgorTodorovskiIBM]

Looks like this isn't a new problem. We may need to add gawk as a build dependency

[IgorTodorovskiIBM]

LGTM