Fix alignment of record_t.

src/cdi_int.h

@@ -151,7 +151,7 @@ typedef struct
   int       ilevel;
   int       ilevel2;
   int       ltype;
-  int       tsteptype;
+  short     tsteptype;
   short     used;
   short     varID;
   short     levelID;

src/stream_cgribex.c

@@ -383,7 +383,7 @@ void cgribexAddRecord(stream_t * streamptr, int param, int *isec1, int *isec2, d
   record->ilevel    = level1;
   record->ilevel2   = level2;
   record->ltype     = ISEC1_LevelType;
-  record->tsteptype = tsteptype;
+  record->tsteptype = (short)tsteptype;
 
   cgribexGetGrid(streamptr, isec2, fsec2, isec4, grid, iret);
 

src/stream_gribapi.c

@@ -444,7 +444,7 @@ void gribapiAddRecord(stream_t * streamptr, int param, grib_handle *gh,
   record->ilevel    = level1;
   record->ilevel2   = level2;
   record->ltype     = leveltype1;
-  record->tsteptype = tsteptype;
+  record->tsteptype = (short)tsteptype;
   record->tiles = tiles ? *tiles : dummy_tiles;
 
   //FIXME: This may leave the variable name unterminated (which is the behavior that I found in the code).