doc/fast-import: clarify how content states are built

Signed-off-by: Eric S. Raymond <esr@thyrsus.com> Signed-off-by: Jeff King <peff@peff.net>

Eric S. Raymond committed Nov 4, 2012 at 23:31 UTC e70528862f0f67fdb6bd67d8819d5b01156eacdc
1 file changed +6 -2
Documentation/git-fast-import.txt
+6 -2
@@ -442,7 +442,9 @@ their syntax.
442 ^^^^^^
443 The `from` command is used to specify the commit to initialize
444 this branch from. This revision will be the first ancestor of the
445 -new commit.
445 +new commit. The state of the tree built at this commit will begin
446 +with the state at the `from` commit, and be altered by the content
447 +modifications in this commit.
448
449 Omitting the `from` command in the first commit of a new branch
450 will cause fast-import to create that commit with no ancestor. This
@@ -492,7 +494,9 @@ existing value of the branch.
494
495 `merge`
496 ^^^^^^^
495 -Includes one additional ancestor commit. If the `from` command is
497 +Includes one additional ancestor commit. The additional ancestry
498 +link does not change the way the tree state is built at this commit.
499 +If the `from` command is
500 omitted when creating a new branch, the first `merge` commit will be
501 the first ancestor of the current commit, and the branch will start
502 out with no files. An unlimited number of `merge` commands per