parse_evemu: main: if one file is given, only dumps the output

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
testsuite: fix skipped files in final output summary

skipped files should not appear there.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
parse_evemu: handle the input state through objects

no semantic changes

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>