[nongnu] elpa/helm 7fd8d860ad 2/5: Improve helm-command-prefix-key docstring

[ELPA Syncer]

branch: elpa/helm
commit 7fd8d860ad3c902e48081c56e1d61be6c06592a6
Author: Thierry Volpiatto <thievol@posteo.net>
Commit: Thierry Volpiatto <thievol@posteo.net>

    Improve helm-command-prefix-key docstring
---
 helm-global-bindings.el | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/helm-global-bindings.el b/helm-global-bindings.el
index b51cad9511..d9a3a79377 100644
--- a/helm-global-bindings.el
+++ b/helm-global-bindings.el
@@ -30,7 +30,12 @@
 (defcustom helm-command-prefix-key
   (helm-aif (car (where-is-internal 'Control-X-prefix (list global-map)))
       (concat it [?c]))
-  "The key `helm-command-prefix' is bound to in the global map."
+  "The prefix key used to call Helm commands from the `global-map'.
+
+Its default value is `C-x c'.
+This key is bound to the function `helm-command-prefix' in the global map.
+The definition of `helm-command-prefix' is the keymap `helm-command-map'.
+Using `setq' to modify this variable will have no effect."
   :type '(choice (string :tag "Key") (const :tag "no binding"))
   :group 'helm-global-bindings
   :set