src/sage/matrix/constructor.pyx: Doctest cosmetics

Author: Matthias Koeppe

src/sage/matrix/constructor.pyx

@@ -238,7 +238,8 @@ def matrix(*args, **kwds):
         sage: M[0] = [9,9,9]
         Traceback (most recent call last):
         ...
-        ValueError: matrix is immutable; please change a copy instead (i.e., use copy(M) to change a copy of M).
+        ValueError: matrix is immutable; please change a copy instead
+        (i.e., use copy(M) to change a copy of M).
 
     TESTS:
 
@@ -509,7 +510,7 @@ def matrix(*args, **kwds):
     A ring and a numpy array::
 
         sage: # needs numpy
-        sage: n = numpy.array([[1,2,3], [4,5,6], [7,8,9]],'float32')
+        sage: n = numpy.array([[1,2,3], [4,5,6], [7,8,9]], 'float32')
         sage: m = matrix(ZZ, n); m; m.parent()
         [1 2 3]
         [4 5 6]