[elpa] externals/urgrep updated (6503497188 -> 03a4687866)

[ELPA Syncer]

elpasync pushed a change to branch externals/urgrep.

      from  6503497188 Provide a setter for `urgrep-preferred-tools` to clear 
the cached tool
       new  dfda4599ef Change `:files` to `:file-wildcard`
       new  810ab23e17 Add `urgrep--shell-join` to simplify some argument 
handling
       new  03a4687866 Make sure that search directories are properly expanded 
before building command


Summary of changes:
 NEWS.md         |   4 +++
 urgrep-tests.el |  65 +++++++++++++++++++++++-----------
 urgrep.el       | 107 +++++++++++++++++++++++++++++++++-----------------------
 3 files changed, 112 insertions(+), 64 deletions(-)