[Users] double instead of CCTK_REAL in two routines in GRHydro

[Jian Tao]

Hi,

There are two places in GRHydro code that variables are
declared using double.

It will be better to use CCTK_REAL instead. It makes it
easier to check various things by setting REAL_PRECISION in the config
file.

GRHydro/src/GRHydro_Con2PrimM_pt.c:  register double ftmp,gtmp;
GRHydro/src/GRHydro_Con2PrimM_pt.c:  double gam_m1_o_gam = 
((gammaeos-1.)/gammaeos);
-- 
Regards,
Jian