Merge branch 'fix-5105' into 'master'

Allows special characters in Grafana admin password

See merge request gitlab-org/omnibus-gitlab!4606

changelogs/unreleased/fix-5105-allow-spcl-chars-grafana-passwd.yml

+---
+title: Allows special characters in Grafana admin password
+merge_request: 4606
+author:
+type: fixed

files/gitlab-ctl-commands/set_grafana_password.rb

@@ -35,7 +35,7 @@ add_command 'set-grafana-password', 'Reset admin password for Grafana', 2 do |cm
   log "Stopping Grafana for password update"
   run_sv_command_for_service('stop', 'grafana')
-  status = GitlabCtl::Util.run_command("/opt/gitlab/embedded/bin/grafana-cli --homepath #{home_dir} admin reset-admin-password #{password}")
+  status = GitlabCtl::Util.run_command("/opt/gitlab/embedded/bin/grafana-cli --homepath #{home_dir} admin reset-admin-password '#{password}'")
   log "Restarting Grafana."
   run_sv_command_for_service('start', 'grafana')