The threee tags `<name>`, `</name>` and `<command>` were frequently used
with a leading space that this removes. The reason this habbit is so
widespread in testcases is probably that they have been copy and pasted.
Hence, fixing them all now might curb this practice from now on.
Closes#12028
In some circumstances when doing parallel transfers, the
single_transfer_cleanup() would not be called and then 'inglob' could
leak.
Test 496 verifies
Reported-by: Trail of Bits
Closes#9749