patch 8.2.4758: when using an LSP channel want to get the message ID

Problem:    When using an LSP channel want to get the message ID.
Solution:   Have ch_sendexpr() return the ID. (Yegappan Lakshmanan,
            closes #10202)
diff --git a/src/version.c b/src/version.c
index 9a50e09..2a3e8d6 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4758,
+/**/
     4757,
 /**/
     4756,