Deb: Sync non-functional changes from official Debian 10.4 packaging

- Update comment strings
- Extend package description to satisfy Lintian complaint
- Remove uscan stanza from rules as it is never used anyway

debian/additions/debian-start

@@ -15,6 +15,7 @@ fi
 
 MYSQL="/usr/bin/mysql --defaults-file=/etc/mysql/debian.cnf"
 MYADMIN="/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf"
+# Don't run full mysql_upgrade on every server restart, use --version-check to do it only once
 MYUPGRADE="/usr/bin/mysql_upgrade --defaults-extra-file=/etc/mysql/debian.cnf --version-check"
 MYCHECK="/usr/bin/mysqlcheck --defaults-file=/etc/mysql/debian.cnf"
 MYCHECK_SUBJECT="WARNING: mysqlcheck has found corrupt tables"

debian/control

@@ -718,6 +718,8 @@ Depends: libcrack2 (>= 2.9.0),
 Description: CrackLib Password Validation Plugin for MariaDB
  This password validation plugin uses cracklib to allow only
  sufficiently secure (as defined by cracklib) user passwords in MariaDB.
+ .
+ Install and configure this to enforce stronger passwords for MariaDB users.
 
 Package: mariadb-test
 Architecture: any

debian/libmariadb-dev.README.Maintainer

 The examples directory includes files that might be needed by some
 developers:
 - the example file udf_example.c
+
+For more information, see MariaDB Connector/C docs at:
+https://github.com/MariaDB/mariadb-connector-c/wiki/libmysql_libmariadb

debian/rules

@@ -163,9 +163,6 @@ override_dh_installinit-arch:
 override_dh_installcron-arch:
 	dh_installcron --name mysql-server
 
-get-orig-source:
-	uscan --force-download --verbose
-
 # If a file is not supposed to be included anywhere, add it to the not-installed
 # file and document the reason. Note that dh_install supports the above mentioned
 # white list file only starting from Debian Stretch and Ubuntu Xenial.