testing: display in help possible values for several options

So we don't have to look in the code if we don't know which value to put.

testing/values.c

@@ -276,7 +276,6 @@ val_t pread_job( const char *str )
     val.job = ChamNoVec;
 
     /* Keep in sync with help documentation in testing/chameleon_ztesting.c */
-
     if ( ( strcasecmp( "ChamNoVec", str ) == 0 ) ||
          ( strcasecmp( "NoVec",     str ) == 0 ) ||
          ( strcasecmp( "N",         str ) == 0 ) )
@@ -348,7 +347,6 @@ val_t pread_norm( const char *str )
     val.ntype = ChamOneNorm;
 
     /* Keep in sync with help documentation in testing/{chameleon,vendor}_ztesting.c */
-
     if ( ( strcasecmp( "ChamOneNorm", str ) == 0 ) ||
          ( strcasecmp( "OneNorm",     str ) == 0 ) ||
          ( strcasecmp( "One",         str ) == 0 ) )