Matt comment feedback

Signed-off-by: Paul Dagnelie <pcd@delphix.com>

module/zfs/metaslab.c

@@ -3567,11 +3567,12 @@ metaslab_sync(metaslab_t *msp, uint64_t txg)
 	 * Normally, we don't want to process a metaslab if there are no
 	 * allocations or frees to perform. However, if the metaslab is being
 	 * forced to condense, it's loaded and we're not beyond the final
-	 * dirty txg, we need to let it through. This prevents an issue where
-	 * metaslabs that need to be condensed but were loaded for other
-	 * reasons could cause a panic here. By only checking the txg in that
-	 * branch of the conditional, we preserve the utility of the VERIFY
-	 * statements in all other cases.
+	 * dirty txg, we need to let it through. Not condensing beyond the
+	 * final dirty txg prevents an issue where metaslabs that need to be
+	 * condensed but were loaded for other reasons could cause a panic
+	 * here. By only checking the txg in that branch of the conditional,
+	 * we preserve the utility of the VERIFY statements in all other
+	 * cases.
 	 */
 	if (range_tree_is_empty(alloctree) &&
 	    range_tree_is_empty(msp->ms_freeing) &&