show "git status" before going to the branch

See #1351, release log:

• 53ba46d by @yegor256: #1351 show status
• 7729cf3 by @yegor256: #1350 year up
• 26916f6 by @yegor256: #1350 show docker version
• 23c25fe by @yegor256: #1350 show git version

Released by Rultor 1.70.1, see build log