[logging] print basename of source file (#7295)
[logging] print basename of source file (#7295)

In some build systems, source files is passed as absolute path, log
messages may be truncated. This commit makes VerifyOrDie only prints
basename of the source file.
abtink/openthread,abtink/openthread,openthread/openthread,srickardti/openthread,srickardti/openthread,openthread/openthread,srickardti/openthread,srickardti/openthread,openthread/openthread,jwhui/openthread,abtink/openthread,jwhui/openthread,abtink/openthread,jwhui/openthread,openthread/openthread,jwhui/openthread