Bug fix: thisEqn variable in code_c.c needs to be of size MAX_EQNLEN+1

This will prevent a compiler warning in GNU C.

Signed-off-by: Bob Yantosca <yantosca@seas.harvard.edu>

src/code_c.c

@@ -311,7 +311,7 @@ int * ival;
 double * dval;
 char ** cval;
 int maxCols = MAX_COLS;
- char thisEqn[MAX_EQNLEN];
+char thisEqn[MAX_EQNLEN+1];
 
   var = varTable[ v ];
   ival = (int*) values;