[v5] Fix unintended zero set in Sparc printInst (#2420)

arch/Sparc/SparcInstPrinter.c

@@ -354,9 +354,9 @@ void Sparc_printInst(MCInst *MI, SStream *O, void *Info)
 	mnem = printAliasInstr(MI, O, Info);
 	if (mnem) {
 		// fixup instruction id due to the change in alias instruction
-		unsigned cpy_len = sizeof(instr) < strlen(mnem) ? sizeof(instr) : strlen(mnem);
+		unsigned cpy_len = sizeof(instr) - 1 < strlen(mnem) ? sizeof(instr) - 1 : strlen(mnem);
 		memcpy(instr, mnem, cpy_len);
-		instr[cpy_len - 1] = '\0';
+		instr[cpy_len] = '\0';
 		// does this contains hint with a coma?
 		p = strchr(instr, ',');
 		if (p)

suite/cstest/issues.cs

@@ -1054,3 +1054,7 @@
 !# issue 2244
 !# CS_ARCH_X86, CS_MODE_64, CS_OPT_DETAIL
 0x0: 0xc5,0xfb,0xc2,0xda,0x06 == vcmpnlesd	xmm3, xmm0, xmm2 ; ID: 797
+
+!# issue 2419
+!# CS_ARCH_SPARC, CS_MODE_BIG_ENDIAN, CS_OPT_DETAIL
+0x0: 0x12,0xbf,0xff,0xff == bne -4 ; Code condition: 265