xgettext needs to know what argument of debuga is a c-format string to add
the proper flag in the po file. The printf-like argument changed place when
the source file and line number were added to debuga.
Function debugaz was not declared as a function taking a printf like
argument.
top_builddir = ..
# These options get passed to xgettext.
-XGETTEXT_OPTIONS = --keyword=_ --keyword=N_ --flag='debuga:1:c-format'
+XGETTEXT_OPTIONS = --keyword=_ --keyword=N_ --flag='debuga:3:c-format' --flag='debugaz:3:c-format'
+
# This is the copyright holder that gets inserted into the header of the
# $(DOMAIN).pot file. Set this to the copyright holder of the surrounding