cubicweb-vcreview #4869926 i18n messages from hgext appear in i18n/*.po [validation pending]

prioritynormal
typebug
done in2.1.0
load0.500
load left0.000
closed by#3e9e88acdb4e [hgext] don't mark error message as translatable
patch[hgext] don't mark error message as translatable [applied]