Fix whitespace.
diff --git a/src/prof.c b/src/prof.c
index d246a32..4071896 100644
--- a/src/prof.c
+++ b/src/prof.c
@@ -895,7 +895,7 @@
 			goto label_error;
 	}
 
-	/* Dump  per ctx profile stats. */
+	/* Dump per ctx profile stats. */
 	for (tabind = 0; ckh_iter(&bt2ctx, &tabind, &bt.v, &ctx.v)
 	    == false;) {
 		if (prof_dump_ctx(propagate_err, ctx.p, bt.p))