[patch] Test cases nsusing.exp and nsrecurs.exp

[Sami Wagiaalla]

> Sami>  +gdb_test "print _a" "No symbol \"_a\" in current context." "Print _a without import"
>
> There are a few over-long lines like this.  Break them up like:
>
> gdb_test "print _a" "No symbol \"_a\" in current context." \
>      "Print _a without import"
>
> Ok with that change.
>

Thank you. Fixed and committed.

Sami