patch 8.2.2276: list of distributed files is outdated

Problem:    List of distributed files is outdated.
Solution:   Update the file list.  Minor comment updates.
diff --git a/src/testdir/test_signals.vim b/src/testdir/test_signals.vim
index 1723f33..72fd024 100644
--- a/src/testdir/test_signals.vim
+++ b/src/testdir/test_signals.vim
@@ -85,8 +85,8 @@
     throw 'Skipped: INT signal not supported'
   endif
 
-  " Skip the rest of the test when running with valgrind as signal INT is not
-  " received somehow by Vim when running with valgrind.
+  " Skip the test when running with valgrind as signal INT is not received
+  " somehow by Vim when running with valgrind.
   let cmd = GetVimCommand()
   if cmd =~ 'valgrind'
     throw 'Skipped: cannot test signal INT with valgrind'
@@ -119,10 +119,6 @@
     throw 'Skipped: TERM signal not supported'
   endif
   CheckRunVimInTerminal
-  let cmd = GetVimCommand()
-  if cmd =~ 'valgrind'
-    throw 'Skipped: cannot test signal TERM with valgrind'
-  endif
 
   " If test fails once, it can leave temporary files and trying to rerun
   " the test would then fail again if they are not deleted first.