change diff checksum arg name to hash (#3384)

scripts/completion/dvc.bash

@@ -21,7 +21,7 @@ _dvc_commit='-f --force -d --with-deps -R --recursive'
 _dvc_commit_COMPGEN=_dvc_compgen_DVCFiles
 _dvc_config='-u --unset --local --system --global'
 _dvc_destroy='-f --force'
-_dvc_diff='-t --show-json --checksums'
+_dvc_diff='-t --show-json --show-hash'
 _dvc_fetch='-j --jobs -r --remote -a --all-branches -T --all-tags -d --with-deps -R --recursive'
 _dvc_fetch_COMPGEN=_dvc_compgen_DVCFiles
 _dvc_get_url=''

scripts/completion/dvc.zsh

@@ -99,7 +99,7 @@ _dvc_destroy=(
 
 _dvc_diff=(
   "--show-json[Format the output into a JSON]"
-  "--checksums[Display checksums for each entry]"
+  "--show-hash[Display hash value for each entry]"
   "1:Old Git commit to compare (defaults to HEAD):"
   "2:New Git commit to compare (defaults to the current workspace):"
 )
@@ -254,7 +254,6 @@ _dvc_run=(
 
 _dvc_status=(
   {-j,--jobs}"[Number of jobs to run simultaneously.]:Number of jobs:"
-  "--show-checksums[Show checksums instead of file names.]"
   {-q,--quiet}"[Suppresses all output. Exit with 0 if pipelines are up to date, otherwise 1.]"
   {-c,--cloud}"[Show status of a local cache compared to a remote repository.]"
   {-r,--remote}"[Remote repository to compare local cache to.]:Remote repository:"