This update for bash provides the following fixes:

- Fix an inconsistent behaviour regarding expansion of here strings. (bsc#1094121)
- Fix mis-matching of null string with '*' pattern. (bsc#1107430)
- Fix a crash when the lastpipe option is enabled.
- Fix a typo that was preventing the `compat42' shopt option from working as intended.
- Help the shell to process any pending traps at redirection.
- Fix a crashe due to incorrect conversion from an indexed to associative array.
- Avoid the expansion of escape sequences in HOSTNAME in prompt.
- Avoid `xtrace' attack over $PS4.

This update was imported from the SUSE:SLE-12-SP2:Update update project.