patch 8.2.3967: error messages are spread out

Problem:    Error messages are spread out.
Solution:   Move more errors to errors.h.
diff --git a/src/os_mswin.c b/src/os_mswin.c
index e27f389..bd9976b 100644
--- a/src/os_mswin.c
+++ b/src/os_mswin.c
@@ -892,7 +892,7 @@
 
     if (!fRunTimeLinkSuccess)
     {
-	semsg(_(e_libcall), funcname);
+	semsg(_(e_library_call_failed_for_str), funcname);
 	return FAIL;
     }
 
@@ -2388,7 +2388,7 @@
     if (target == 0)
     {
 	if (!silent)
-	    semsg(_(e_noserver), name);
+	    semsg(_(e_no_registered_server_named_str), name);
 	return -1;
     }