Doc fixes

* doc/misc/autotype.texi (Skeleton Language):
* doc/misc/message.texi (Header Commands):
* lisp/allout-widgets.el (allout-widgets-tally)
(allout-decorate-item-guides):
* lisp/menu-bar.el (menu-bar-positive-p):
* lisp/minibuffer.el (completion-pcm-complete-word-inserts-delimiters):
* lisp/cedet/ede.el (ede-project-directories, ede-check-project-directory):
* lisp/cedet/semantic/ia-sb.el (semantic-ia-sb-show-doc):
* lisp/cedet/semantic/tag.el (semantic-tag-in-buffer-p):
* lisp/cedet/semantic/bovine/c.el (semantic-tag-abstract-p):
* lisp/gnus/gnus-registry.el (gnus-registry-install-p): Doc fix.
* lisp/progmodes/gdb-mi.el (gdbmi-same-start, gdbmi-is-number):
* lisp/progmodes/js.el (js--inside-param-list-p)
(js--inside-dojo-class-list-p, js--forward-destructuring-spec):
* lisp/progmodes/prolog.el (region-exists-p):
* lisp/progmodes/verilog-mode.el (verilog-scan-cache-ok-p):
* lisp/textmodes/reftex-parse.el (reftex-using-biblatex-p):
* lisp/url/url-parse.el (url-generic-parse-url):
* src/floatfns.c (Fisnan):
* src/profiler.c (Fprofiler_cpu_running_p):
Doc fixes (replace `iff').

Fixes: debbugs:17309

1 files changed, 3 insertions, 3 deletions

diff --git a/lisp/gnus/gnus-registry.el b/lisp/gnus/gnus-registry.el
index 5989b8885bc..f3b81f77b50 100644
--- a/lisp/gnus/gnus-registry.el
+++ b/lisp/gnus/gnus-registry.el
@@ -1125,9 +1125,9 @@ only the last one's marks are returned."
 (add-hook 'gnus-registry-unload-hook 'gnus-registry-unload-hook)
 
 (defun gnus-registry-install-p ()
-  "If the registry is not already enabled, and `gnus-registry-install' is t,
-the registry is enabled.  If `gnus-registry-install' is `ask',
-the user is asked first.  Returns non-nil iff the registry is enabled."
+  "Return non-nil if the registry is enabled (and maybe enable it first).
+If the registry is not already enabled, then if `gnus-registry-install'
+is `ask', ask the user; or if `gnus-registry-install' is non-nil, enable it."
   (interactive)
   (unless gnus-registry-enabled
     (when (if (eq gnus-registry-install 'ask)