Remove reverse indentation from zed comments.

Remove all occurrences of reverse indentation from zed comments for
consistency within the project code base.

Signed-off-by: Chris Dunlap <cdunlap@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2695

cmd/zed/zed_strings.c

@@ -47,8 +47,7 @@ typedef struct zed_strings_node zed_strings_node_t;
 
 /*
  * Compare zed_strings_node_t nodes [x1] and [x2].
- * As required for the AVL tree, return exactly
- *   -1 for <, 0 for ==, and +1 for >.
+ * As required for the AVL tree, return -1 for <, 0 for ==, and +1 for >.
  */
 static int
 _zed_strings_node_compare(const void *x1, const void *x2)
@@ -118,6 +117,7 @@ zed_strings_destroy(zed_strings_t *zsp)
 /*
  * Add a copy of the string [s] to the container [zsp].
  * Return 0 on success, or -1 on error.
+ *
  * FIXME: Handle dup strings.
  */
 int