s390: Use proper string lengths when parsing opcode table flags

opcodes/
	* s390-mkopc.c: Use proper string lengths when parsing opcode
	table flags.

Fixes: c5306fed7d ("s390: Support for jump visualization in disassembly")
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Reviewed-by: Andreas Krebbel <krebbel@linux.ibm.com>

opcodes/s390-mkopc.c

@@ -491,15 +491,15 @@ main (void)
 		       && (str[2] == 0 || str[2] == ',')) {
 	      flag_bits |= S390_INSTR_FLAG_VX;
 	      str += 2;
-	    } else if (strncmp (str, "jump", 7) == 0
+	    } else if (strncmp (str, "jump", 4) == 0
 		&& (str[4] == 0 || str[4] == ',')) {
 	      flag_bits |= S390_INSTR_FLAGS_CLASS_JUMP;
 	      str += 4;
-	    } else if (strncmp (str, "condjump", 7) == 0
+	    } else if (strncmp (str, "condjump", 8) == 0
 		&& (str[8] == 0 || str[8] == ',')) {
 	      flag_bits |= S390_INSTR_FLAGS_CLASS_CONDJUMP;
 	      str += 8;
-	    } else if (strncmp (str, "jumpsr", 7) == 0
+	    } else if (strncmp (str, "jumpsr", 6) == 0
 		&& (str[6] == 0 || str[6] == ',')) {
 	      flag_bits |= S390_INSTR_FLAGS_CLASS_JUMPSR;
 	      str += 6;