This new test was used to verify the new implementations of getopt_long() and getopt_long_only() and to verify that there are no regressions to the existing getopts().
Only the OS test is affect by this change.
Verified with the getopt() modifications on a modified version of the sim:nsh configuration.
This commit adds the test developed by Jan Staschulat with Issue #incubator_nuttx/2935
It is expected to cause the OS test to fail for the time being since that issue reports a bug.
Tested using the (new) stm32f4discovery:sporadic configuratioin.
include/ and netutils/: Remove references to CONFIG_DISABLE_SIGNALS. Signals can no longer be disabled.
nshlib/: Remove references to CONFIG_DISABLE_SIGNALS. Signals can no longer be disabled.
system/: Remove references to CONFIG_DISABLE_SIGNALS. Signals can no longer be disabled.
testing/: Remove references to CONFIG_DISABLE_SIGNALS. Signals can no longer be disabled.
examples/: Remove references to CONFIG_DISABLE_SIGNALS. Signals can no longer be disabled.