patch 8.2.0850: MS-Windows: exepath() works different from cmd.exe

Problem:    MS-Windows: exepath() works different from cmd.exe.
Solution:   Make exepath() work better on MS-Windows. (closes #6115)
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 89f011b..0585ce0 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -4034,7 +4034,7 @@
 		On MS-Windows the ".exe", ".bat", etc. can optionally be
 		included.  Then the extensions in $PATHEXT are tried.  Thus if
 		"foo.exe" does not exist, "foo.exe.bat" can be found.  If
-		$PATHEXT is not set then ".exe;.com;.bat;.cmd" is used.  A dot
+		$PATHEXT is not set then ".com;.exe;.bat;.cmd" is used.  A dot
 		by itself can be used in $PATHEXT to try using the name
 		without an extension.  When 'shell' looks like a Unix shell,
 		then the name is also tried without adding an extension.