Add missing semicolons after mjFREESTACK.

The code is already well-formed since the macro itself contains a semicolon, however this is stylistically inconsistent with the rest of the codebase. The missing semicolon is also problematic for automated code transformations.

PiperOrigin-RevId: 494734527
Change-Id: I9aef5844c8c3cce6eefea8f8bf13a4ab3dd79878

src/engine/engine_forward.c

@@ -734,7 +734,7 @@ void mj_implicitSkip(const mjModel *m, mjData *d, int skipfactor) {
   // advance state and time
   mj_advance(m, d, d->act_dot, qacc, NULL);
 
-  mjFREESTACK
+  mjFREESTACK;
 }
 
 

src/engine/engine_support.c

@@ -917,7 +917,7 @@ void mj_makeMSparse(const mjModel* m, mjData* d, int* rownnz, int* rowadr, int*
     }
   }
 
-  mjFREESTACK
+  mjFREESTACK;
 }
 
 
@@ -952,7 +952,7 @@ void mj_setMSparse(const mjModel* m, mjData* d, mjtNum* dst,
     }
   }
 
-  mjFREESTACK
+  mjFREESTACK;
 }