sh: Clean up some old comments:

* There is no plan for an alternative to the command "set".
* Attempting to unset a readonly variable has not raised an error for quite
  a while, so the order of unsetting a variable and a function with the same
  name does not matter.

MFC after:	1 week

1 files changed, 3 insertions, 6 deletions

diff --git a/bin/sh/var.c b/bin/sh/var.c
index e841647..44d2028 100644
--- a/bin/sh/var.c
+++ b/bin/sh/var.c
@@ -600,9 +600,8 @@ var_compare(const void *a, const void *b)
 
 
 /*
- * Command to list all variables which are set.  Currently this command
- * is invoked from the set command when the set command is called without
- * any variables.
+ * Command to list all variables which are set.  This is invoked from the
+ * set command when it is called without any options or operands.
  */
 
 int
@@ -840,9 +839,7 @@ setvarcmd(int argc, char **argv)
 
 
 /*
- * The unset builtin command.  We unset the function before we unset the
- * variable to allow a function to be unset when there is a readonly variable
- * with the same name.
+ * The unset builtin command.
  */
 
 int