[PATCH/RFC v3 5/7] Makefile: Override --keyword= for all languages

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

By default xgettext will supply a default list of keywords depending
on the --language parameter. Disable this in favor of supplying a list
of keywords manually.

This reduced the surface area for potential bugs.
---
 Makefile |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 40eb1a2..62b8279 100644
--- a/Makefile
+++ b/Makefile
@@ -1884,9 +1884,9 @@ cscope:
 	$(FIND) . -name '*.[hcS]' -print | xargs cscope -b
 
 pot:
-	$(XGETTEXT) --keyword=_ --output=po/git.pot --language=C $(C_OBJ:o=c)
-	$(XGETTEXT) --join-existing --output=po/git.pot --language=Shell $(SCRIPT_SH)
-	$(XGETTEXT) --join-existing --output=po/git.pot --language=Perl $(SCRIPT_PERL)
+	$(XGETTEXT) --keyword= --keyword=_ --output=po/git.pot --language=C $(C_OBJ:o=c)
+	$(XGETTEXT) --join-existing --keyword= --keyword=gettext --output=po/git.pot --language=Shell $(SCRIPT_SH)
+	$(XGETTEXT) --join-existing --keyword= --keyword=gettext --output=po/git.pot --language=Perl $(SCRIPT_PERL)
 
 POFILES := $(wildcard po/*.po)
 MOFILES := $(patsubst po/%.po,share/locale/%/LC_MESSAGES/git.mo,$(POFILES))
-- 
1.7.1.248.gb7713.dirty