Merge branch 'tb/document-status-u-tradeoff'

Suggest users to look into using--untracked=no option when "git
status" takes too long.

* tb/document-status-u-tradeoff:
  status: advise to consider use of -u when read_directory takes too long
  git status: document trade-offs in choosing parameters to the -u option

diff --cc Documentation/config.txt
index b3023b817244d5b315f8e3227eaa87fd888ecf95,a16eda5d472a837ed3ded6c4802f34c5a32f4305..975d3d18d5e5873b37ab5b29dcbb9b6cab2dbc6f
--- 1/Documentation/config.txt
--- 2/Documentation/config.txt
+++ b/Documentation/config.txt
@@@ -160,24 -158,15 +160,28 @@@ advice.*:
                'matching refs' explicitly (i.e. you used ':', or
                specified a refspec that isn't your current branch) and
                it resulted in a non-fast-forward error.
 +      pushAlreadyExists::
 +              Shown when linkgit:git-push[1] rejects an update that
 +              does not qualify for fast-forwarding (e.g., a tag.)
 +      pushFetchFirst::
 +              Shown when linkgit:git-push[1] rejects an update that
 +              tries to overwrite a remote ref that points at an
 +              object we do not have.
 +      pushNeedsForce::
 +              Shown when linkgit:git-push[1] rejects an update that
 +              tries to overwrite a remote ref that points at an
 +              object that is not a committish, or make the remote
 +              ref point at an object that is not a committish.
        statusHints::
                Show directions on how to proceed from the current
 -              state in the output of linkgit:git-status[1] and in
 +              state in the output of linkgit:git-status[1], in
                the template shown when writing commit messages in
 -              linkgit:git-commit[1].
 +              linkgit:git-commit[1], and in the help message shown
 +              by linkgit:git-checkout[1] when switching branch.
+       statusUoption::
+               Advise to consider using the `-u` option to linkgit:git-status[1]
+               when the command takes more than 2 seconds to enumerate untracked
+               files.
        commitBeforeMerge::
                Advice shown when linkgit:git-merge[1] refuses to
                merge to avoid overwriting local changes.

diff --cc Documentation/git-status.txt
Simple merge

diff --cc advice.c
index 780f58da0f5b508eaa278c98dd15bdf6f919c468,015011fe0dff7b01c42e13d3e53ceb1178cecfc9..3bc86260b8a2a809a379c91627f919ef0a529aa1
--- 1/advice.c
--- 2/advice.c
+++ b/advice.c
@@@ -4,10 -4,8 +4,11 @@@ int advice_push_update_rejected = 1
  int advice_push_non_ff_current = 1;
  int advice_push_non_ff_default = 1;
  int advice_push_non_ff_matching = 1;
 +int advice_push_already_exists = 1;
 +int advice_push_fetch_first = 1;
 +int advice_push_needs_force = 1;
  int advice_status_hints = 1;
+ int advice_status_u_option = 1;
  int advice_commit_before_merge = 1;
  int advice_resolve_conflict = 1;
  int advice_implicit_identity = 1;
@@@ -21,10 -19,8 +22,11 @@@ static struct 
        { "pushnonffcurrent", &advice_push_non_ff_current },
        { "pushnonffdefault", &advice_push_non_ff_default },
        { "pushnonffmatching", &advice_push_non_ff_matching },
 +      { "pushalreadyexists", &advice_push_already_exists },
 +      { "pushfetchfirst", &advice_push_fetch_first },
 +      { "pushneedsforce", &advice_push_needs_force },
        { "statushints", &advice_status_hints },
+       { "statusuoption", &advice_status_u_option },
        { "commitbeforemerge", &advice_commit_before_merge },
        { "resolveconflict", &advice_resolve_conflict },
        { "implicitidentity", &advice_implicit_identity },

diff --cc advice.h
index fad36df467f065bf7ff7a82d9d447ee4ac5cecb9,e3e665dc1806561d300120b9994260d80f8f84c2..af0c983c686b9ca5be2e8631562e60bd19656c22
--- 1/advice.h
--- 2/advice.h
+++ b/advice.h
@@@ -7,10 -7,8 +7,11 @@@ extern int advice_push_update_rejected
  extern int advice_push_non_ff_current;
  extern int advice_push_non_ff_default;
  extern int advice_push_non_ff_matching;
 +extern int advice_push_already_exists;
 +extern int advice_push_fetch_first;
 +extern int advice_push_needs_force;
  extern int advice_status_hints;
+ extern int advice_status_u_option;
  extern int advice_commit_before_merge;
  extern int advice_resolve_conflict;
  extern int advice_implicit_identity;

diff --cc t/t7508-status.sh
Simple merge

diff --cc t/t7512-status-help.sh
Simple merge

diff --cc wt-status.c
Simple merge

diff --cc wt-status.h
Simple merge