Merge pull request certik#45 from certik/alloc

Declare `lam` as an array

Author: certik

src/best-practices.rst

@@ -444,13 +444,13 @@ memory automatically and it is not possible to create memory leaks.
 For example you can allocate it inside a subroutine::
 
     subroutine foo(lam)
-    real(dp), allocatable, intent(out) :: lam
+    real(dp), allocatable, intent(out) :: lam(:)
     allocate(lam(5))
     end subroutine
 
 And use somewhere else::
 
-    real(dp), allocatable :: lam
+    real(dp), allocatable :: lam(:)
     call foo(lam)
 
 When the ``lam`` symbol goes out of scope, Fortran will deallocate it. If