R"**(
BEGIN TRANSACTION;
    ALTER TABLE trans
        ADD comment TEXT DEFAULT "";
    UPDATE config
        SET value = "1.2"
        WHERE key = 'version';
COMMIT;
)**"

R"**(
BEGIN TRANSACTION;
    ALTER TABLE trans
        ADD comment TEXT DEFAULT '';
    UPDATE config
        SET value = '1.2'
        WHERE key = 'version';
COMMIT;
)**"

Use single-quotes around string literals used in SQL statements
Use single-quotes around string literals used in SQL statements

If sqlite is built with -DSQLITE_DQS=0 in accordance with
https://sqlite.org/quirks.html#dblquote, migration to version 1.2 of the
history database would fail with:

  History database cannot be created: /var/lib/dnf/history.sqlite.
  Error: SQLite error on ":memory:": Executing an SQL statement failed:
  no such column: 1.2

Closes: #951
Approved by: jrohel
