Revert "cat-file: split --batch input lines on whitespace"

This reverts commit c334b87b30c1464a1ab563fe1fb8de5eaf0e5bac; the
update assumed that people only used the command to read from
"rev-list --objects" output, whose lines begin with a 40-hex object
name followed by a whitespace, but it turns out that scripts feed
random extended SHA-1 expressions (e.g. "HEAD:$pathname") in which
a whitespace has to be kept.

1 files changed, 2 insertions, 8 deletions

diff --git a/Documentation/git-cat-file.txt b/Documentation/git-cat-file.txt
index 3ddec0b65b..10fbc6a373 100644
--- a/Documentation/git-cat-file.txt
+++ b/Documentation/git-cat-file.txt
@@ -88,10 +88,8 @@ BATCH OUTPUT
 If `--batch` or `--batch-check` is given, `cat-file` will read objects
 from stdin, one per line, and print information about them.
 
-Each line is split at the first whitespace boundary. All characters
-before that whitespace are considered as a whole object name, and are
-parsed as if given to linkgit:git-rev-parse[1]. Characters after that
-whitespace can be accessed using the `%(rest)` atom (see below).
+Each line is considered as a whole object name, and is parsed as if
+given to linkgit:git-rev-parse[1].
 
 You can specify the information shown for each object by using a custom
 `<format>`. The `<format>` is copied literally to stdout for each
@@ -112,10 +110,6 @@ newline. The available atoms are:
 	The size, in bytes, that the object takes up on disk. See the
 	note about on-disk sizes in the `CAVEATS` section below.
 
-`rest`::
-	The text (if any) found after the first run of whitespace on the
-	input line (i.e., the "rest" of the line).
-
 If no format is specified, the default format is `%(objectname)
 %(objecttype) %(objectsize)`.