[PATCH 1/5] i18n: keep the last \n even when text is poisoned

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

This helps maintain the layout somewhat when translatable text is
poisoned.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 gettext.c |   10 ++++++++++
 gettext.h |    6 ++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/gettext.c b/gettext.c
index f75bca7..60bc2ad 100644
--- a/gettext.c
+++ b/gettext.c
@@ -24,6 +24,16 @@ int use_gettext_poison(void)
 		poison_requested = getenv("GIT_GETTEXT_POISON") ? 1 : 0;
 	return poison_requested;
 }
+
+const char *poison_text(const char *msgid)
+{
+	int len = strlen(msgid);
+	if (len && msgid[len-1] == '\n')
+		return "# GETTEXT POISON #\n";
+	else
+		return "# GETTEXT POISON #";
+}
+
 #endif
 
 #ifndef NO_GETTEXT
diff --git a/gettext.h b/gettext.h
index 57ba8bb..2313c84 100644
--- a/gettext.h
+++ b/gettext.h
@@ -38,20 +38,22 @@ static inline void git_setup_gettext(void)
 
 #ifdef GETTEXT_POISON
 extern int use_gettext_poison(void);
+extern const char *poison_text(const char *msgid);
 #else
 #define use_gettext_poison() 0
+#define poison_text(x) NULL
 #endif
 
 static inline FORMAT_PRESERVING(1) const char *_(const char *msgid)
 {
-	return use_gettext_poison() ? "# GETTEXT POISON #" : gettext(msgid);
+	return use_gettext_poison() ? poison_text(msgid) : gettext(msgid);
 }
 
 static inline FORMAT_PRESERVING(1) FORMAT_PRESERVING(2)
 const char *Q_(const char *msgid, const char *plu, unsigned long n)
 {
 	if (use_gettext_poison())
-		return "# GETTEXT POISON #";
+		return poison_text(msgid);
 	return ngettext(msgid, plu, n);
 }
 
-- 
1.7.3.1.256.g2539c.dirty