Remove remaining mentions of VMS as a host

* notes/exit-value: Remove specific discussion of VMS.
* doc/emacs/programs.texi (Program Modes): Don't advertise VMS DCL support
any more.
* doc/misc/ediff.texi (Merging and diff3): Don't mention lack of support
for VMS diff, we no longer support VMS.
* lisp/progmodes/ada-mode.el:
* lisp/net/tramp.el (tramp-handle-file-symlink-p):
* lisp/net/tramp-ftp.el (tramp-ftp-file-name-handler): Remove a comment
about VMS, which we no longer support.
* lisp/progmodes/ada-xref.el (ada-xref-current): Remove mention of VMS,
and fix a FIXME, using convert-standard-filename in place of
removed ada-convert-file-name.
* lisp/url/url-handlers.el: Remove a comment about VMS, which we no longer
support.

1 files changed, 18 insertions, 25 deletions

diff --git a/admin/notes/exit-value b/admin/notes/exit-value
index cad6862c8aa..96337e4c8dd 100644
--- a/admin/notes/exit-value
+++ b/admin/notes/exit-value
@@ -1,35 +1,28 @@
 ttn 2004-05-09
 
-The exit value of a program returning to the shell on unixoid systems is
-typically 0 for success, and non-0 (such as 1) for failure.  For vms it is
-odd (1,3,5...) for success, even (0,2,4...) for failure.
-
-This holds from the point of view of the "shell" (in quotes because vms has a
-different dispatch model that is not explained further here).
-
-From the point of view of the program, nowadays stdlib.h on both type of
-systems provides macros `EXIT_SUCCESS' and `EXIT_FAILURE' that should DTRT.
-
-NB: The numerical values of these macros DO NOT need to fulfill the exit
-value requirements outlined in the first paragraph!  That is the job of the
+The exit value of a program returning to the shell on unixoid systems
+is typically 0 for success, and non-0 (such as 1) for failure. This is
+not always the case on other systems.
+
+From the point of view of the program stdlib.h provides macros
+`EXIT_SUCCESS' and `EXIT_FAILURE' that should DTRT.  N.B. The
+numerical values of these macros DO NOT need to fulfill the exit value
+requirements outlined in the first paragraph!  That is the job of the
 `exit' function.  Thus, this kind of construct shows misunderstanding:
 
-   #ifdef VMS
+   #ifdef WEIRD_OS
       exit (1);
    #else
       exit (0);
    #endif
 
-Values aside from EXIT_SUCCESS and EXIT_FAILURE are tricky.
-
-
-
-ttn 2004-05-12
+Values aside from EXIT_SUCCESS and EXIT_FAILURE are tricky, but can be
+used to indicate finer gradations of failure.  If this is the only
+information available to the caller, clamping such values to
+EXIT_FAILURE loses information.  If there are other ways to indicate
+the problem to the caller (such as a message to stderr) it may be ok
+to clamp.  In all cases, it is the relationship between the program
+and its caller that must be examined.
 
-Values aside from EXIT_SUCCESS and EXIT_FAILURE can be used to indicate
-finer gradations of failure.  If this is the only information available
-to the caller, clamping such values to EXIT_FAILURE loses information.
-If there are other ways to indicate the problem to the caller (such as
-a message to stderr) it may be ok to clamp.  In all cases, it is the
-relationship between the program and its caller that must be examined.
-[Insert ZAMM quote here.]
+[Insert ZAMM quote here.] <-- I presume this refers to ``Zen and the
+Art of Motorcycle Maintenance'' - Reuben Thomas <rrt@sc3d.org>.