[PATCH] guilt: skip empty line after from: line in patch descriptoin

[PATCH] guilt: skip empty line after from: line in patch descriptoin

Commit 2cc8d353d7ecb broke manually written patch descriptions of the
form:

    > Frobnozzle: this is a patch subject
    >
    > From: Fred McNurk <fred@mcnurt.foo>
    >
    > This is the patch description

Commit 8f88f953580a0 partially fixed things by filtering out the From:
field, but it did not filter out the empty line (if present) after the
    > Frobnozzle: this is a patch subject
    >
    >
    > This is the patch description

instead of

    > Frobnozzle: this is a patch subject
    >
    > This is the patch description

The ext4 patch queue has used this format for years, and this change
should not break other patches which look like mail headers and
bodies.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>