Documentation: improve "add", "pull" and "format-patch" examples

diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
index 74b461f66194be5abc944c9feeb8666125955d82..9712392f7946366129056ed8a0b7b8fab83c0ed5 100644 (file)
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -26,6 +26,9 @@ creates a 'tag' object, and requires the tag message.  Unless
 `-m <msg>` or `-F <file>` is given, an editor is started for the user to type
 in the tag message.
 
+If `-m <msg>` or `-F <file>` is given and `-a`, `-s`, and `-u <key-id>`
+are absent, `-a` is implied.
+
 Otherwise just the SHA1 object name of the commit object is
 written (i.e. a lightweight tag).
 
@@ -68,10 +71,14 @@ OPTIONS
        Use the given tag message (instead of prompting).
        If multiple `-m` options are given, there values are
        concatenated as separate paragraphs.
+       Implies `-a` if none of `-a`, `-s`, or `-u <key-id>`
+       is given.
 
 -F <file>::
        Take the tag message from the given file.  Use '-' to
        read the message from the standard input.
+       Implies `-a` if none of `-a`, `-s`, or `-u <key-id>`
+       is given.
 
 CONFIGURATION
 -------------
@@ -226,14 +233,14 @@ the tag object affects, for example, the ordering of tags in the
 gitweb interface.
 
 To set the date used in future tag objects, set the environment
-variable GIT_AUTHOR_DATE to one or more of the date and time.  The
+variable GIT_COMMITTER_DATE to one or more of the date and time.  The
 date and time can be specified in a number of ways; the most common
 is "YYYY-MM-DD HH:MM".
 
 An example follows.
 
 ------------
-$ GIT_AUTHOR_DATE="2006-10-02 10:31" git tag -s v1.0.1
+$ GIT_COMMITTER_DATE="2006-10-02 10:31" git tag -s v1.0.1
 ------------