Merge branch 'em/newer-freebsd-shells-are-fine-with-returns' into maint

Comments about misbehaving FreeBSD shells have been clarified with
the version number (9.x and before are broken, newer ones are OK).

* em/newer-freebsd-shells-are-fine-with-returns:
  rebase: update comment about FreeBSD /bin/sh

git-rebase--am.sh

@@ -9,8 +9,8 @@
 # below were not inside any function, and expected to return
 # to the function that dot-sourced us.
 #
-# However, FreeBSD /bin/sh misbehaves on such a construct and
-# continues to run the statements that follow such a "return".
+# However, older (9.x) versions of FreeBSD /bin/sh misbehave on such a
+# construct and continue to run the statements that follow such a "return".
 # As a work-around, we introduce an extra layer of a function
 # here, and immediately call it after defining it.
 git_rebase__am () {

git-rebase--interactive.sh

@@ -1038,8 +1038,8 @@ check_todo_list () {
 # below were not inside any function, and expected to return
 # to the function that dot-sourced us.
 #
-# However, FreeBSD /bin/sh misbehaves on such a construct and
-# continues to run the statements that follow such a "return".
+# However, older (9.x) versions of FreeBSD /bin/sh misbehave on such a
+# construct and continue to run the statements that follow such a "return".
 # As a work-around, we introduce an extra layer of a function
 # here, and immediately call it after defining it.
 git_rebase__interactive () {

git-rebase--merge.sh

@@ -107,8 +107,8 @@ finish_rb_merge () {
 # below were not inside any function, and expected to return
 # to the function that dot-sourced us.
 #
-# However, FreeBSD /bin/sh misbehaves on such a construct and
-# continues to run the statements that follow such a "return".
+# However, older (9.x) versions of FreeBSD /bin/sh misbehave on such a
+# construct and continue to run the statements that follow such a "return".
 # As a work-around, we introduce an extra layer of a function
 # here, and immediately call it after defining it.
 git_rebase__merge () {