fix(translation): Add missing translations for WARNING and ERROR

The "WARNING" and "ERROR" words (used when printing a warning or an error messages to users) were missing from the translations files and were thus printed as such whatever language is used.

Fixes #182

po/arch-update.pot

@@ -16,6 +16,16 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
+#: src/script/arch-update.sh:120
+#, sh-format
+msgid "WARNING"
+msgstr ""
+
+#: src/script/arch-update.sh:126
+#, sh-format
+msgid "ERROR"
+msgstr ""
+
 #: src/script/arch-update.sh:131
 #, sh-format
 msgid "Press \"enter\" to continue "

po/fr.po

@@ -16,6 +16,16 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
+#: src/script/arch-update.sh:120
+#, sh-format
+msgid "WARNING"
+msgstr "AVERTISSEMENT"
+
+#: src/script/arch-update.sh:126
+#, sh-format
+msgid "ERROR"
+msgstr "ERREUR"
+
 #: src/script/arch-update.sh:131
 #, sh-format
 msgid "Press \"enter\" to continue "

src/script/arch-update.sh

@@ -117,13 +117,13 @@ ask_msg() {
 # Definition of the warning_msg function: Display a message as a warning message
 warning_msg() {
 	msg="${1}"
-	echo -e "${yellow}==> WARNING:${color_off}${bold} ${msg}${color_off}"
+	echo -e "${yellow}==> "$(eval_gettext "WARNING")":${color_off}${bold} ${msg}${color_off}"
 }
 
 # Definition of the error_msg function: Display a message as an error message
 error_msg() {
 	msg="${1}"
-	echo -e >&2 "${red}==> ERROR:${color_off}${bold} ${msg}${color_off}"
+	echo -e >&2 "${red}==> "$(eval_gettext "ERROR")":${color_off}${bold} ${msg}${color_off}"
 }
 
 # Definition of the continue_msg function: Display the continue message