bin/51875: [PATCH] tests/usr.bin/grep/...: portability fixes

[yaneurabeya%gmail.com@localhost]

>Number:         51875
>Category:       bin
>Synopsis:       [PATCH] tests/usr.bin/grep/...: portability fixes
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jan 14 13:30:00 +0000 2017
>Originator:     Ngie Cooper
>Release:        7.0.2
>Organization:
>Environment:
n/a
>Description:
The attached patch does the following 2 things to ensure improved portability:
1. Doesn't assume that uname output is in /bin/sh ([un]fortunately uname can be overridden on FreeBSD, which means that the binary branding might not match the OS branding). Create a bogus temporary file instead.
2. Sort the output from grep, as not all filesystems might presenting the output in the same way.
>How-To-Repeat:

>Fix: