updated for version 7.3.057
Problem:    Segfault with command line abbreviation. (Randy Morris)
Solution:   Don't retrigger the abbreviation when abandoning the command line.
            Continue editing the command line after the error.
diff --git a/src/ex_getln.c b/src/ex_getln.c
index c0d2496..dfc6dff 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -712,7 +712,11 @@
 		    }
 		}
 		beep_flush();
-		c = ESC;
+		got_int = FALSE;	/* don't abandon the command line */
+		did_emsg = FALSE;
+		emsg_on_display = FALSE;
+		redrawcmd();
+		goto cmdline_not_changed;
 	    }
 #endif
 	    else
diff --git a/src/version.c b/src/version.c
index 7449bfb..3a04aab 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    57,
+/**/
     56,
 /**/
     55,