Merge branch 'fe/doc-updates' into maint

Doc updates.

* fe/doc-updates:
  git-describe.1: clarify that "human readable" is also git-readable
  git-column.1: clarify initial description, provide examples
  git-archimport.1: specify what kind of Arch we're talking about

Author: gitster

Documentation/git-archimport.txt

@@ -3,7 +3,7 @@ git-archimport(1)
 
 NAME
 ----
-git-archimport - Import an Arch repository into Git
+git-archimport - Import a GNU Arch repository into Git
 
 
 SYNOPSIS
@@ -14,7 +14,8 @@ SYNOPSIS
 
 DESCRIPTION
 -----------
-Imports a project from one or more Arch repositories. It will follow branches
+Imports a project from one or more GNU Arch repositories.
+It will follow branches
 and repositories within the namespaces defined by the <archive/branch>
 parameters supplied. If it cannot find the remote branch a merge comes from
 it will just import it as a regular commit. If it can find it, it will mark it

Documentation/git-column.txt

@@ -13,7 +13,10 @@ SYNOPSIS
 
 DESCRIPTION
 -----------
-This command formats its input into multiple columns.
+This command formats the lines of its standard input into a table with
+multiple columns. Each input line occupies one cell of the table. It
+is used internally by other git commands to format output into
+columns.
 
 OPTIONS
 -------
@@ -23,7 +26,7 @@ OPTIONS
 
 --mode=<mode>::
 	Specify layout mode. See configuration variable column.ui for option
-	syntax.
+	syntax in linkgit:git-config[1].
 
 --raw-mode=<n>::
 	Same as --mode but take mode encoded as a number. This is mainly used
@@ -43,6 +46,34 @@ OPTIONS
 --padding=<N>::
 	The number of spaces between columns. One space by default.
 
+EXAMPLES
+------
+
+Format data by columns:
+------------
+$ seq 1 24 | git column --mode=column --padding=5
+1      4      7      10     13     16     19     22
+2      5      8      11     14     17     20     23
+3      6      9      12     15     18     21     24
+------------
+
+Format data by rows:
+------------
+$ seq 1 21 | git column --mode=row --padding=5
+1      2      3      4      5      6      7
+8      9      10     11     12     13     14
+15     16     17     18     19     20     21
+------------
+
+List some tags in a table with unequal column widths:
+------------
+$ git tag --list 'v2.4.*' --column=row,dense
+v2.4.0  v2.4.0-rc0  v2.4.0-rc1  v2.4.0-rc2  v2.4.0-rc3
+v2.4.1  v2.4.10     v2.4.11     v2.4.12     v2.4.2
+v2.4.3  v2.4.4      v2.4.5      v2.4.6      v2.4.7
+v2.4.8  v2.4.9
+------------
+
 GIT
 ---
 Part of the linkgit:git[1] suite

Documentation/git-describe.txt

@@ -18,7 +18,9 @@ The command finds the most recent tag that is reachable from a
 commit.  If the tag points to the commit, then only the tag is
 shown.  Otherwise, it suffixes the tag name with the number of
 additional commits on top of the tagged object and the
-abbreviated object name of the most recent commit.
+abbreviated object name of the most recent commit. The result
+is a "human-readable" object name which can also be used to
+identify the commit to other git commands.
 
 By default (without --all or --tags) `git describe` only shows
 annotated tags.  For more information about creating annotated tags