[Bug default/28027] New: abilint: "Unknown file type given in input" error message has no end of line character (LF)

["pabs3 at bonedaddy dot net" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=28027

            Bug ID: 28027
           Summary: abilint: "Unknown file type given in input" error
                    message has no end of line character (LF)
           Product: libabigail
           Version: unspecified
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: default
          Assignee: dodji at redhat dot com
          Reporter: pabs3 at bonedaddy dot net
                CC: libabigail at sourceware dot org
  Target Milestone: ---

I noticed while playing with abilint that the "Unknown file type given in
input" error message has no end of line character (LF or \n), so if you are
passing multiple files to abilint via xargs, you get all the output on one
line. As far as I can tell all the other errors printed by abilint contain and
end of line character (\n).

$ echo foo > foo
$ abilint --noout foo |& hd
00000000  61 62 69 6c 69 6e 74 3a  20 55 6e 6b 6e 6f 77 6e  |abilint: Unknown|
00000010  20 66 69 6c 65 20 74 79  70 65 20 67 69 76 65 6e  | file type given|
00000020  20 69 6e 20 69 6e 70 75  74 3a 20 66 6f 6f        | in input: foo|
0000002e
$ echo foo | hd
00000000  66 6f 6f 0a                                       |foo.|
00000004

$ grep -B2 -A1 'Unknown file type given in input' tools/abilint.cc
        case abigail::tools_utils::FILE_TYPE_UNKNOWN:
          emit_prefix(argv[0], cerr)
            << "Unknown file type given in input: " << opts.file_path;
          return 1;

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