Add helpdocs for ":[count]LspDiagPrev"

diff --git a/doc/lsp.txt b/doc/lsp.txt
index 6a75fbfb8a688d0323d2e322d5ed6bf0c924918e..91abc465558f9be3add33b8f2b76330c3e653399 100644 (file)
--- a/doc/lsp.txt
+++ b/doc/lsp.txt
@@ -477,8 +477,10 @@ can map these commands to keys and make it easier to invoke them.
                        current position, then the last diagnostic is selected.
 
                                                *:LspDiagPrev*
-:LspDiagPrev           Jumps to the location of the diagnostic message before
-                       the current cursor position.
+:[count]LspDiagPrev    Go to the [count] diagnostic message before the current
+                       cursor position.  If [count] is omitted, then 1 is used.
+                       If [count] exceeds the number of diagnostics before the
+                       current position, then first last diagnostic is selected.
 
                                                *:LspDiagShow*
 :LspDiagShow           Creates a new location list with the diagnostics