Fix qr test failure on nightly (#1013)

Author: thchr

test/qr.jl

@@ -48,15 +48,15 @@ Random.seed!(42)
         test_qr(arr)
     end
     # some special cases
-    for arr in [
+    for arr in (
                    (@MMatrix randn(3,2)),
                    (@MMatrix randn(2,3)),
                    (@SMatrix([0 1 2; 0 2 3; 0 3 4; 0 4 5])),
                    (@SMatrix zeros(Int,4,4)),
                    (@SMatrix([1//2 1//1])),
                    (@SMatrix randn(17,18)),    # fallback to LAPACK
                    (@SMatrix randn(18,17))
-               ]
+                )
         test_qr(arr)
     end