This update fixes the following issues with rsyslog:
- bnc#848574: update to 7.4.6 [v7.4-stable]
Fixes various segfault, memory leak and buffer overrun fixes and a selection of application bugs
+ bugfix: potential abort during HUP
+ bugfix: imtcp flowControl parameter incorrectly defaulted to "off"
+ now requires libestr 0.1.9 for number handling in RainerScript
+ bugfix: memory leak in strlen() RainerScript function
+ bugfix: buffer overrun if re_extract function was called for submatch 50
+ bugfix: memleak in re_extract() function
+ bugfix: potential abort in RainerScript optimizer
+ bugfix: memory leak in omhiredis
+ bugfix: segfault if variable was assigned to non-container subtree

- also contains changes from 7.4.5
+ mmanon: removed the check for specific "terminator characters"
+ omelasticsearch: add failed.httprequests stats counter
+ bugfix: invalid property filter was not properly disabled in ruleset
+ bugfix: segfault if re_extract() function was used and no match found
+ bugfix: potential misadressing on startup if property-filter was used
+ bugfix: omelasticsearch: correct failed.http stats counter
+ bugfix: omelasticsearch: did not correctly initialize stats counters
+ bugfix: omelasticsearch: failed.es counter was only maintained in bulk mode
+ bugfix: mmanon did not detect all IP addresses in rewrite mode
+ bugfix: mmanon sometimes used invalid replacement char in simple mode
+ bugfix: memory leak in mmnormalize
+ bugfix: array-based ==/!= comparisions lead to invalid results
+ bugfix: omprog blocked signals to executed programs
+ bugfix: doc: imuxsock legacy param $SystemLogSocketParseTrusted was misspelled
+ bugfix: imfile "facility" input parameter improperly handled
+ bugfix: small memory leak in imfile when $ResetConfigVariables was used
+ bugfix: segfault on startup if TLS was used but no CA cert set
+ bugfix: segfault on startup if TCP TLS was used but no cert or key set
+ bugfix: some more build problems with newer json-c versions
+ bugfix: build system: libgcrypt.h needed even if libgrcypt was disabled

- fix build on ppc