patch 8.0.0467: using g< after :for does not show the right output

Problem:    Using g< after :for does not show the right output. (Marcin
            Szamotulski)
Solution:   Call msg_sb_eol() in :echomsg.
diff --git a/src/eval.c b/src/eval.c
index e5e787b..56bb21f 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -8319,6 +8319,15 @@
 
     if (ret != FAIL && ga.ga_data != NULL)
     {
+	if (eap->cmdidx == CMD_echomsg || eap->cmdidx == CMD_echoerr)
+	{
+	    /* Mark the already saved text as finishing the line, so that what
+	     * follows is displayed on a new line when scrolling back at the
+	     * more prompt. */
+	    msg_sb_eol();
+	    msg_start();
+	}
+
 	if (eap->cmdidx == CMD_echomsg)
 	{
 	    MSG_ATTR(ga.ga_data, echo_attr);
diff --git a/src/version.c b/src/version.c
index 4737663..9aad9b6 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    467,
+/**/
     466,
 /**/
     465,