macro that set/unset one attribute, immediately followed by an
overriding setting; this makes attribute macros much easier to use.
+ * We didn't recognize timezone "Z" as a synonym for "UTC" (75b37e70).
+
* "git am -3" did not show diagnosis when the patch in the message was corrupt.
+ * After "git apply --whitespace=fix" removed trailing blank lines in an
+ patch in a patch series, it failed to apply later patches that depend
+ on the presense of such blank lines.
+
* "git bundle --stdin" segfaulted.
+ * "git checkout" and "git rebase" overwrote paths that are marked "assume
+ unchanged".
+
* "git describe" did not tie-break tags that point at the same commit
correctly; newer ones are preferred by paying attention to the
tagger date now.
+ * "git diff" used to tell underlying xdiff machinery to work very hard to
+ minimize the output, but this often was spending too many extra cycles
+ for very little gain.
+
+ * "git diff --color" did not paint extended diff headers per line
+ (i.e. the coloring escape sequence didn't end at the end of line),
+ which confused "less -R".
+
* "git fetch" over HTTP verifies the downloaded packfiles more robustly.
* The memory usage by "git index-pack" (run during "git fetch" and "git
* "git log --abbrev=$num --format='%h' ignored --abbrev=$num.
+ * "git pull" accepted "--dry-run", gave it to underlying "git fetch" but
+ ignored the option itself, resulting in a bogus attempt to merge
+ unrelated commit.
+
* "git send-email" lacked a way to specify the domainname used in the
EHLO/HELO exchange, causing rejected connection from picky servers.
It learned --smtp-domain option to solve this issue.