Add prefix arg to more isearch commands.

* lisp/isearch.el (isearch-yank-word, isearch-yank-line)
(isearch-char-by-name, isearch-quote-char)
(isearch-printing-char, isearch-process-search-char):
Add optional count prefix arg. 

* lisp/international/isearch-x.el (isearch-process-search-multibyte-characters):
Add optional count prefix arg.

Fixes: debbugs:14563

1 files changed, 4 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 7e26c2458e8..8bf1d17005e 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -296,6 +296,10 @@ and opens overlays with hidden text when `search-invisible' is `open'.
 *** By default, prefix arguments do not now terminate Isearch mode.
 Set `isearch-allow-prefix' to nil to restore old behavior.
 
+*** More Isearch commands accept prefix arguments, namely
+`isearch-printing-char', `isearch-quote-char', `isearch-yank-word',
+`isearch-yank-line'.
+
 ** MH-E has been updated to MH-E version 8.5.
 See MH-E-NEWS for details.