worktree: add: make -b/-B default to HEAD when <branch> is omitted

diff --git a/t/lib-read-tree-m-3way.sh b/t/lib-read-tree-m-3way.sh
index 586df2113f81aed913769bf977924ec7851207fe..168329adbc4edeedc98501575ccc9b9c81f0c061 100644 (file)
--- a/t/lib-read-tree-m-3way.sh
+++ b/t/lib-read-tree-m-3way.sh
@@ -10,14 +10,14 @@ do
        echo This is Z/$p from the original tree. >Z/$p
        test_expect_success \
            "adding test file $p and Z/$p" \
-           'git-update-index --add $p &&
-           git-update-index --add Z/$p'
+           'git update-index --add $p &&
+           git update-index --add Z/$p'
     done
 done
 echo This is SS from the original tree. >SS
 test_expect_success \
     'adding test file SS' \
-    'git-update-index --add SS'
+    'git update-index --add SS'
 cat >TT <<\EOF
 This is a trivial merge sample text.
 Branch A is expected to upcase this word, here.
@@ -32,10 +32,10 @@ This concludes the trivial merge sample file.
 EOF
 test_expect_success \
     'adding test file TT' \
-    'git-update-index --add TT'
+    'git update-index --add TT'
 test_expect_success \
     'prepare initial tree' \
-    'tree_O=$(git-write-tree)'
+    'tree_O=$(git write-tree)'
 
 ################################################################
 # Branch A and B makes the changes according to the above matrix.
@@ -47,14 +47,14 @@ to_remove=$(echo D? Z/D?)
 rm -f $to_remove
 test_expect_success \
     'change in branch A (removal)' \
-    'git-update-index --remove $to_remove'
+    'git update-index --remove $to_remove'
 
 for p in M? Z/M?
 do
     echo This is modified $p in the branch A. >$p
     test_expect_success \
        'change in branch A (modification)' \
-        "git-update-index $p"
+        "git update-index $p"
 done
 
 for p in AN AA Z/AN Z/AA
@@ -62,31 +62,31 @@ do
     echo This is added $p in the branch A. >$p
     test_expect_success \
        'change in branch A (addition)' \
-       "git-update-index --add $p"
+       "git update-index --add $p"
 done
 
 echo This is SS from the modified tree. >SS
 echo This is LL from the modified tree. >LL
 test_expect_success \
     'change in branch A (addition)' \
-    'git-update-index --add LL &&
-     git-update-index SS'
+    'git update-index --add LL &&
+     git update-index SS'
 mv TT TT-
 sed -e '/Branch A/s/word/WORD/g' <TT- >TT
 rm -f TT-
 test_expect_success \
     'change in branch A (edit)' \
-    'git-update-index TT'
+    'git update-index TT'
 
 mkdir DF
 echo Branch A makes a file at DF/DF, creating a directory DF. >DF/DF
 test_expect_success \
     'change in branch A (change file to directory)' \
-    'git-update-index --add DF/DF'
+    'git update-index --add DF/DF'
 
 test_expect_success \
     'recording branch A tree' \
-    'tree_A=$(git-write-tree)'
+    'tree_A=$(git write-tree)'
 
 ################################################################
 # Branch B
@@ -96,21 +96,21 @@ rm -rf [NDMASLT][NDMASLT] Z DF
 mkdir Z
 test_expect_success \
     'reading original tree and checking out' \
-    'git-read-tree $tree_O &&
-     git-checkout-index -a'
+    'git read-tree $tree_O &&
+     git checkout-index -a'
 
 to_remove=$(echo ?D Z/?D)
 rm -f $to_remove
 test_expect_success \
     'change in branch B (removal)' \
-    "git-update-index --remove $to_remove"
+    "git update-index --remove $to_remove"
 
 for p in ?M Z/?M
 do
     echo This is modified $p in the branch B. >$p
     test_expect_success \
        'change in branch B (modification)' \
-       "git-update-index $p"
+       "git update-index $p"
 done
 
 for p in NA AA Z/NA Z/AA
@@ -118,41 +118,41 @@ do
     echo This is added $p in the branch B. >$p
     test_expect_success \
        'change in branch B (addition)' \
-       "git-update-index --add $p"
+       "git update-index --add $p"
 done
 echo This is SS from the modified tree. >SS
 echo This is LL from the modified tree. >LL
 test_expect_success \
     'change in branch B (addition and modification)' \
-    'git-update-index --add LL &&
-     git-update-index SS'
+    'git update-index --add LL &&
+     git update-index SS'
 mv TT TT-
 sed -e '/Branch B/s/word/WORD/g' <TT- >TT
 rm -f TT-
 test_expect_success \
     'change in branch B (modification)' \
-    'git-update-index TT'
+    'git update-index TT'
 
 echo Branch B makes a file at DF. >DF
 test_expect_success \
     'change in branch B (addition of a file to conflict with directory)' \
-    'git-update-index --add DF'
+    'git update-index --add DF'
 
 test_expect_success \
     'recording branch B tree' \
-    'tree_B=$(git-write-tree)'
+    'tree_B=$(git write-tree)'
 
 test_expect_success \
     'keep contents of 3 trees for easy access' \
     'rm -f .git/index &&
-     git-read-tree $tree_O &&
+     git read-tree $tree_O &&
      mkdir .orig-O &&
-     git-checkout-index --prefix=.orig-O/ -f -q -a &&
+     git checkout-index --prefix=.orig-O/ -f -q -a &&
      rm -f .git/index &&
-     git-read-tree $tree_A &&
+     git read-tree $tree_A &&
      mkdir .orig-A &&
-     git-checkout-index --prefix=.orig-A/ -f -q -a &&
+     git checkout-index --prefix=.orig-A/ -f -q -a &&
      rm -f .git/index &&
-     git-read-tree $tree_B &&
+     git read-tree $tree_B &&
      mkdir .orig-B &&
-     git-checkout-index --prefix=.orig-B/ -f -q -a'
+     git checkout-index --prefix=.orig-B/ -f -q -a'