Documentation: bisect: add some titles to some paragraphs.

diff --git a/git-am.sh b/git-am.sh
index 9a6123437ea092069fc2c0c29349252f31efd496..88af8dd256ef871e8a35ec47df925db9b13b95f7 100755 (executable)
--- a/git-am.sh
+++ b/git-am.sh
@@ -3,7 +3,7 @@
 # Copyright (c) 2005, 2006 Junio C Hamano
 
 USAGE='[--signoff] [--dotest=<dir>] [--utf8 | --no-utf8] [--binary] [--3way]
-  [--interactive] [--whitespace=<option>] [-CNUM] <mbox>...
+  [--interactive] [--whitespace=<option>] [-C<n>] [-p<n>] <mbox>...
   or, when resuming [--skip | --resolved]'
 . git-sh-setup
 set_reflog_action am
@@ -66,7 +66,7 @@ fall_back_3way () {
     git-update-index -z --index-info <"$dotest/patch-merge-index-info" &&
     GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
     git-write-tree >"$dotest/patch-merge-base+" ||
-    cannot_fallback "Patch does not record usable index information."
+    cannot_fallback "Repository lacks necessary blobs to fall back on 3-way merge."
 
     echo Using index info to reconstruct a base tree...
     if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
@@ -142,10 +142,7 @@ do
        --sk|--ski|--skip)
        skip=t; shift ;;
 
-       --whitespace=*)
-       git_apply_opt="$git_apply_opt $1"; shift ;;
-
-       -C*)
+       --whitespace=*|-C*|-p*)
        git_apply_opt="$git_apply_opt $1"; shift ;;
 
        --resolvemsg=*)
@@ -293,6 +290,10 @@ do
                git-mailinfo $keep $utf8 "$dotest/msg" "$dotest/patch" \
                        <"$dotest/$msgnum" >"$dotest/info" ||
                        stop_here $this
+               test -s $dotest/patch || {
+                       echo "Patch is empty.  Was is split wrong?"
+                       stop_here $this
+               }
                git-stripspace < "$dotest/msg" > "$dotest/msg-clean"
                ;;
        esac