updated for version 7.3.619
Problem:    When executing a shell command Vim may become slow to respond.
Solution:   Don't wait after every processed message. (idea by Yasuhiro
            Matsumoto)
diff --git a/src/os_win32.c b/src/os_win32.c
index 6b29cfc..8151e60 100644
--- a/src/os_win32.c
+++ b/src/os_win32.c
@@ -3319,6 +3319,8 @@
 	    {
 		TranslateMessage(&msg);
 		pDispatchMessage(&msg);
+		delay = 1;
+		continue;
 	    }
 	    if (WaitForSingleObject(pi.hProcess, delay) != WAIT_TIMEOUT)
 		break;
diff --git a/src/version.c b/src/version.c
index 94a2b5c..285bdfc 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    619,
+/**/
     618,
 /**/
     617,