fix configuration/modules/imptcp.rst rest syntax

doc url : http://www.rsyslog.com/doc/master/configuration/modules/imptcp.html
kick off v8.5
Merge branch 'v8-stable'
impstats: describe upcoming new "bracketing" option
type fix and clearer wording (iff)
Merge branch 'v8-stable'
imgssapi: document new $InputGSSServerKeepAlive config statement
Merge branch 'v8-stable'
Merge branch 'v8-stable'
Merge branch 'v8-stable'
Merge branch 'v8-stable'
Merge branch 'v8-stable'
Merge branch 'v8-stable'
Merge branch 'v8-stable'
Merge branch 'v8-stable'
imfile: update info on state file handling for 8.5.0

Handling has changed considerably due to wildcard support.
grammar fix
add new 8.5 features to compatibilty doc
imfile: document new parameter
Merge branch 'v8-stable'