Fraser Tweedale 4a5f5203d0 fix errors and portability issues in expr commands ...

Add double-quotes around all expr(1) left-hand-sides where the
argument is just a variable, to prevent syntax errors when the
variable is empty.

Also avoid the `expr match ...` variant as this is not defined in
POSIX and causes errors in some implementations, including
FreeBSD's.

2014-02-21 20:52:50 +10:00

16 KiB

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