The variable substitution code in intltool-update breaks when it encounters a
space in the value assigned to a variable. FOO=`echo bar` thus becomes `echo and
causes shell to error out when it gets passed in. The bug is repeatable by
running intltool-update --pot in evolution-exchange/po from CVS. This is fixed
in the attached patch which changes the regex to grab everything up to the end
of the line. There are related bugs that I will file, that are ignorable for the
moment, as they have usable workarounds or don't cause fatal errors in the script.