chdman: Rename outputsplit to split

Author: 987123879113

src/tools/chdman.cpp

@@ -97,7 +97,7 @@ constexpr int MODE_GDI = 2;
 #define OPTION_INPUT "input"
 #define OPTION_OUTPUT "output"
 #define OPTION_OUTPUT_BIN "outputbin"
-#define OPTION_OUTPUT_SPLIT "outputsplit"
+#define OPTION_OUTPUT_SPLIT "split"
 #define OPTION_OUTPUT_FORCE "force"
 #define OPTION_INPUT_START_BYTE "inputstartbyte"
 #define OPTION_INPUT_START_HUNK "inputstarthunk"