l10n: de.po: change error message from "sagen" to "Meinten Sie"

We should not use "sagen" if someone has written something wrong.
Although it's "say" in English, we should not use it in German
and instead use our normal error message.

Signed-off-by: Phillip Sz <phillip.szelat@gmail.com>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>

po/de.po

@@ -2183,7 +2183,7 @@ msgstr "Nichts spezifiziert, nichts hinzugefügt.\n"
 #: builtin/add.c:358
 #, c-format
 msgid "Maybe you wanted to say 'git add .'?\n"
-msgstr "Wollten Sie vielleicht 'git add .' sagen?\n"
+msgstr "Meinten Sie vielleicht 'git add .'?\n"
 
 #: builtin/add.c:363 builtin/check-ignore.c:172 builtin/clean.c:920
 #: builtin/commit.c:335 builtin/mv.c:130 builtin/reset.c:235 builtin/rm.c:299