[lit] Fix a shell parsing bug with ';' not separated by whitespace.  - Testing finds bugs, who knew.
[lit] Fix a shell parsing bug with ';' not separated by whitespace.
 - Testing finds bugs, who knew.

git-svn-id: a4a6f32337ebd29ad4763b423022f00f68d1c7b7@174087 91177308-0d34-0410-b5e6-96231b3b80d8

lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx