master 733921e 2/3: project-known-roots: Rename and improve

[Dmitry Gutov]

branch: master
commit 733921edfebe54488143719fada303d2d5d35b29
Author: Dmitry Gutov <dgutov@yandex.ru>
Commit: Dmitry Gutov <dgutov@yandex.ru>

    project-known-roots: Rename and improve
    
    * lisp/progmodes/project.el (project-known-project-roots):
    Rename from 'project-known-roots'.  Update the docstring.  Make
    sure the returned value is a list of strings.  Update the caller
    (bug#41821).
---
 lisp/progmodes/project.el | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lisp/progmodes/project.el b/lisp/progmodes/project.el
index e1adabd..add0e59 100644
--- a/lisp/progmodes/project.el
+++ b/lisp/progmodes/project.el
@@ -937,10 +937,10 @@ It's also possible to enter an arbitrary directory not in 
the list."
       pr-dir)))
 
 ;;;###autoload
-(defun project-known-roots ()
-  "Return a list of known project roots."
+(defun project-known-project-roots ()
+  "Return the list of root directories of all known projects."
   (project--ensure-read-project-list)
-  project--list)
+  (mapcar #'car project--list))
 
 
 ;;; Project switching