Merge branch 'zj/diff-stat-dyncol'

By Zbigniew Jędrzejewski-Szmek (8) and Junio C Hamano (1)
* zj/diff-stat-dyncol:
  : This breaks tests. Perhaps it is not worth using the decimal-width stuff
  : for this series, at least initially.
  diff --stat: add config option to limit graph width
  diff --stat: enable limiting of the graph part
  diff --stat: add a test for output with COLUMNS=40
  diff --stat: use a maximum of 5/8 for the filename part
  merge --stat: use the full terminal width
  log --stat: use the full terminal width
  show --stat: use the full terminal width
  diff --stat: use the full terminal width
  diff --stat: tests for long filenames and big change counts

diff --cc Documentation/diff-options.txt
index ba7cd13483194399762b0f48e218ddb4011dfcf1,87f0a5fb8f1b74332d0a9ce6579bc5d8d0f00ef3..7d4566f829e860758328309c377608a1083b0298
--- 1/Documentation/diff-options.txt
--- 2/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@@ -52,17 -52,20 +52,23 @@@ endif::git-format-patch[
  --patience::
        Generate a diff using the "patience diff" algorithm.
  
 +--histogram::
 +      Generate a diff using the "histogram diff" algorithm.
 +
  --stat[=<width>[,<name-width>[,<count>]]]::
-       Generate a diffstat.  You can override the default
-       output width for 80-column terminal by `--stat=<width>`.
-       The width of the filename part can be controlled by
-       giving another width to it separated by a comma.
+       Generate a diffstat. By default, as much space as necessary
+       will be used for the filename part, and the rest for the graph
+       part. Maximum width defaults to terminal width, or 80 columns
+       if not connected to a terminal, and can be overriden by
+       `<width>`. The width of the filename part can be limited by
+       giving another width `<name-width>` after a comma. The width
+       of the graph part can be limited by using
+       `--stat-graph-width=<width>` (affects all commands generating
+       a stat graph) or by setting `diff.statGraphWidth=<width>`
+       (does not affect `git format-patch`).
        By giving a third parameter `<count>`, you can limit the
-       output to the first `<count>` lines, followed by
-       `...` if there are more.
+       output to the first `<count>` lines, followed by `...` if
+       there are more.
  +
  These parameters can also be set individually with `--stat-width=<width>`,
  `--stat-name-width=<name-width>` and `--stat-count=<count>`.

diff --cc builtin/merge.c
Simple merge

diff --cc contrib/completion/git-completion.bash
Simple merge

diff --cc diff.c
Simple merge

diff --cc diff.h
Simple merge