tests: Make rge-sm.py use less memory (integration step increased).

In addition to memory allocation failure, other problem was that 10**17
was overflowing.  Now passes.

tests/misc/rge-sm.py

@@ -111,4 +111,4 @@ def singleTraj(system, trajStart, h=0.02, tend=1.0):
 #phaseDiagram(sysSM, (lambda i, j: [0.354, 0.654, 1.278, 0.8 + 0.2 * i, 0.1 + 0.1 * j]), (lambda a: (a[4], a[5])), h=0.1, tend=math.log(10**17))
 
 # initial conditions at M_Z
-singleTraj(sysSM, [0.354, 0.654, 1.278, 0.983, 0.131], h=0.1, tend=math.log(10**17)) # true values
+singleTraj(sysSM, [0.354, 0.654, 1.278, 0.983, 0.131], h=0.5, tend=math.log(10**17)) # true values