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Possible regression of BZ#851096.

This bug has been fixed in s390utils-1.8.1-18.el5. Nevertheless, it appears in RHEL 6 builds and disappears again in RHEL 7 builds.

RHEL 5 - s390utils-1.8.1-18.el5.s390x (PASS)
--------------------------------------------
# cat /etc/profile.d/s390.sh 
# /etc/profile.d/s390.sh - set TERM variable

contype=`/sbin/consoletype stdout`
if [ "$contype" = "serial" ]; then
    export TERM=dumb
fi

# zsh /etc/profile.d/s390.sh


RHEL 6.7 - s390utils-1.8.2-56.el6.s390x (FAIL)
----------------------------------------------
# cat /etc/profile.d/s390.sh 
# /etc/profile.d/s390.sh - set TERM variable

contype=`/sbin/consoletype stdout`
if [ "$contype" == "serial" ]; then
    export TERM=dumb
fi

# zsh /etc/profile.d/s390.sh 
/etc/profile.d/s390.sh:4: = not found


RHEL 7.1 - s390utils-1.23.0-17.el7.s390x (PASS)
-----------------------------------------------
# cat /etc/profile.d/s390.sh 
# /etc/profile.d/s390.sh - set TERM variable

contype=`/sbin/consoletype stdout`
if [ "$contype" = "serial" ]; then
    export TERM=dumb
fi

# zsh /etc/profile.d/s390.sh

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-1341.html