The get_lldb_version_string function in the lit config used a greedy
regex that could, if using a lldb binary built with git revision output,
using a SHA that starts with a digit, result in the first digits of the
SHA being interpreted as the lldb version.
For example, if lldb emits:
$ lldb --version
lldb version 23.0.0git \
(https://github.com/dstenb/llvm-project.git revision \
7e565729e33d19d468520e7bfbb8b23a918adc9c)
the version would be interpreted as 7 rather than 23.0.0:
Marking some LLDB LLVM data-formatter tests as unsupported: using
version 7 whereas a version >= 1900 is required
(That check should compare towards 19.0.0, but that issue is addressed
in an other patch.)
Resolve this by using a non-greedy matcher.
Also, include a drive-by fix of some typos.
ddaa590ace