I tried what you said:
$ msgfmt -cv hy.po
It returns no errors only statistics, I placed generated messages.mo
file to the Inkscape's locale folder, but get the same result.
Maybe something wrong with system configuration (I'm testing Inkscape
Find the hy.po file at http://3.file.am/4281, I put words in Armenian,
Greek, Hebrew and Georgian in "File" menu string (line:8007).