Switch cache-long-scans to t by default.

 src/xdisp.c (message_dolog): Make sure the *Messages* buffer has its
 cache-long-scans disabled, since we don't want to call
 prepare_to_modify_buffer (in insert_1_both) for each message we
 display.
 src/buffer.h (bset_cache_long_scans): New INLINE function, moved
 from buffer.c.  Improve commentary to the buffer field setter
 functions.
 src/buffer.c (bset_cache_long_scans): Static function deleted.
 Improve commentary to the buffer field setter functions.
 (init_buffer_once): Default for cache-long-scans changed to t.
 (Bug#15797)

1 files changed, 16 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 9bf71b9ce21..fdb4b24233f 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,19 @@
+2013-11-08  Eli Zaretskii  <eliz@gnu.org>
+
+        * xdisp.c (message_dolog): Make sure the *Messages* buffer has its
+        cache-long-scans disabled, since we don't want to call
+        prepare_to_modify_buffer (in insert_1_both) for each message we
+        display.
+
+        * buffer.h (bset_cache_long_scans): New INLINE function, moved
+        from buffer.c.  Improve commentary to the buffer field setter
+        functions.
+
+        * buffer.c (bset_cache_long_scans): Static function deleted.
+        Improve commentary to the buffer field setter functions.
+        (init_buffer_once): Default for cache-long-scans changed to t.
+        (Bug#15797)
+
 2013-11-08  Paul Eggert  <eggert@cs.ucla.edu>
 
         * chartab.c (make_sub_char_table): Fix size typo (Bug#15825).