Makefile.am: Automake broke the test suite summary

Because of this in our Makefile.am:

    PACKAGE_VERSION_GIT = $$(git describe --tags --dirty | sed 's|^[^/-]*[/-]||')
    PACKAGE_STRING = $(PACKAGE_NAME) $(PACKAGE_VERSION_GIT)

and this in Automake lib/am/check.am since version 1.16.3:

    AM_TESTSUITE_SUMMARY_HEADER = ' for $(PACKAGE_STRING)'

the test suite summary header came out like this:

    ============================================================================
    /bin/bash: line 64: ^[^/-]*[/-]: No such file or directory
    /bin/bash: line 64: $')\E[m': command not found
    ============================================================================

but is now fixed to look like this:

    ============================================================================
    Testsuite summary for opkbuild 4.2.2-3-gcc09f4e-dirty
    ============================================================================

0 files changed, 0 insertions, 0 deletions