Parameter substitution code has been simplified. SLF4J now only
cares about the "{}" formatting anchor, that is the '{' character
immediately followed by '}'. Previously, the '{' had meaning on its
own. As a result of this change, users no longer need to escape the
'{' unless it is immediately followed by '}'. Existing messages
which escaped standalone '{' character will be printed with a
preceding backslash. However, no data loss in the printed messages
will occur.
The new code also runs about 5% faster.
4 files changed
