patch 8.2.0383: wrong feature check causes test not to be run

Problem:    Wrong feature check causes test not to be run.
Solution:   Use CheckFunction instead of CheckFeature. (Ozaki Kiichi,
            closes #5781)

src/testdir/test_channel.vim

@@ -1775,7 +1775,7 @@ endfunc
 
 func Test_job_start_in_timer()
   CheckFeature timers
-  CheckFeature reltimefloat
+  CheckFunction reltimefloat
 
   func OutCb(chan, msg)
     let g:val += 1

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    383,
 /**/
     382,
 /**/