l10n: ru.po: fix typo in Russian translation

Signed-off-by: Alexey Roslyakov <alexey.roslyakov@gmail.com>
diff --git a/po/ru.po b/po/ru.po
index d04ebf1..993d106 100644
--- a/po/ru.po
+++ b/po/ru.po
@@ -13497,7 +13497,7 @@
 #: builtin/fetch.c:174 builtin/fetch.c:180 builtin/pull.c:209
 #: builtin/pull.c:218
 msgid "deepen history of shallow clone"
-msgstr "улугубить историю частичного клона"
+msgstr "углубить историю частичного клона"
 
 #: builtin/fetch.c:176 builtin/pull.c:212
 msgid "deepen history of shallow repository based on time"