Elvish-specific tests failing due to deprecated 'except'

[grawlinson]

direnv/test/direnv-test.elv

Line 34 in abdd443

} except e {

direnv/test/direnv-test.elv

Line 75 in abdd443

} except e {

Test output (exits with non-zero code):

## Testing skip-env ##
direnv: loading ~/direnv/src/direnv/test/.envrc
direnv: unloading
deprecation: "except" is deprecated; use "catch" instead
/build/direnv/src/direnv/test/direnv-test.elv, line 34:         } except e {
compilation error: variable $m not found
/build/direnv/src/direnv/test/direnv-test.elv, line 27:                 keys $m | each [k]{

[grawlinson]

Pulling in #896 removes the deprecation messages, but the compilation error message still persists.

[zimbatm]

I'm not an elvish user so let me know how to fix this