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
curl would erroneously report CURLE_OUT_OF_MEMORY in some cases instead
of CURLE_URL_MALFORMAT. In other cases, it would erroneously return
CURLE_URL_MALFORMAT instead of CURLE_OUT_OF_MEMORY. Add a test case to
test the former condition.
Fixes#10130Closes#10414