Adjust commit message template (#2225)

* Adjust commit message template

All issue tags in the template use colons, but none of the real-world
examples mentioned below actually does. This change removes colons from
the template to not confuse contributors.

Closes #2224

Signed-off-by: Igor Munkin <imun@tarantool.org>

* Update translations

Co-authored-by: Nick Volynkin <nick.volynkin@gmail.com>

Author: igormunkin

doc/dev_guide/developer_guidelines.rst

@@ -93,10 +93,10 @@ A template:
       by a single space, with blank lines in between, but conventions
       vary here.
 
-    Fixes: #123
-    Closes: #456
-    Needed for: #859
-    See also: #343, #789
+    Fixes #123
+    Closes #456
+    Needed for #859
+    See also #343, #789
 
 Some real-world examples:
 

locale/ru/LC_MESSAGES/dev_guide/developer_guidelines.po

@@ -172,10 +172,10 @@ msgid ""
 "  by a single space, with blank lines in between, but conventions\n"
 "  vary here.\n"
 "\n"
-"Fixes: #123\n"
-"Closes: #456\n"
-"Needed for: #859\n"
-"See also: #343, #789"
+"Fixes #123\n"
+"Closes #456\n"
+"Needed for #859\n"
+"See also #343, #789"
 msgstr ""
 "Кратко сформулируйте изменения в пределах 50 символов.\n"
 "\n"
@@ -200,10 +200,10 @@ msgstr ""
 "  пробел, а между строками вставляются пустые строки, но в данном случае\n"
 "  условные обозначения могут разниться.\n"
 "\n"
-"Исправляет: #123\n"
-"Закрывает: #456\n"
-"Необходим для: #859\n"
-"См. также: #343, #789"
+"Fixes #123\n"
+"Closes #456\n"
+"Needed for #859\n"
+"See also #343, #789"
 
 msgid "Some real-world examples:"
 msgstr "Некоторые реальные примеры:"