Add TWFunc::Exec_Cmd() with no 'result' agrument

Signed-off-by: Vojtech Bocek <vbocek@gmail.com>

Change-Id: Id8acff1ac9b3c7e4b562c80562a8ff42a1d132b9
diff --git a/partitionmanager.cpp b/partitionmanager.cpp
index 4e72117..ca93a2a 100644
--- a/partitionmanager.cpp
+++ b/partitionmanager.cpp
@@ -1635,8 +1635,8 @@
 		if (!SDext->UnMount(true))
 			return false;
 	}
-	string result;
-	TWFunc::Exec_Cmd("umount \"$SWAPPATH\"", result);
+
+	TWFunc::Exec_Cmd("umount \"$SWAPPATH\"");
 	Device = SDCard->Actual_Block_Device;
 	// Just use the root block device
 	Device.resize(strlen("/dev/block/mmcblkX"));
@@ -1688,7 +1688,7 @@
 	gui_print("Removing partition table...\n");
 	Command = "parted -s " + Device + " mklabel msdos";
 	LOGINFO("Command is: '%s'\n", Command.c_str());
-	if (TWFunc::Exec_Cmd(Command, result) != 0) {
+	if (TWFunc::Exec_Cmd(Command) != 0) {
 		LOGERR("Unable to remove partition table.\n");
 		Update_System_Details();
 		return false;
@@ -1696,7 +1696,7 @@
 	gui_print("Creating FAT32 partition...\n");
 	Command = "parted " + Device + " mkpartfs primary fat32 0 " + fat_str + "MB";
 	LOGINFO("Command is: '%s'\n", Command.c_str());
-	if (TWFunc::Exec_Cmd(Command, result) != 0) {
+	if (TWFunc::Exec_Cmd(Command) != 0) {
 		LOGERR("Unable to create FAT32 partition.\n");
 		return false;
 	}
@@ -1704,7 +1704,7 @@
 		gui_print("Creating EXT partition...\n");
 		Command = "parted " + Device + " mkpartfs primary ext2 " + fat_str + "MB " + ext_str + "MB";
 		LOGINFO("Command is: '%s'\n", Command.c_str());
-		if (TWFunc::Exec_Cmd(Command, result) != 0) {
+		if (TWFunc::Exec_Cmd(Command) != 0) {
 			LOGERR("Unable to create EXT partition.\n");
 			Update_System_Details();
 			return false;
@@ -1714,7 +1714,7 @@
 		gui_print("Creating swap partition...\n");
 		Command = "parted " + Device + " mkpartfs primary linux-swap " + ext_str + "MB " + swap_str + "MB";
 		LOGINFO("Command is: '%s'\n", Command.c_str());
-		if (TWFunc::Exec_Cmd(Command, result) != 0) {
+		if (TWFunc::Exec_Cmd(Command) != 0) {
 			LOGERR("Unable to create swap partition.\n");
 			Update_System_Details();
 			return false;
@@ -1749,7 +1749,7 @@
 		Command = "mke2fs -t " + ext_format + " -m 0 " + SDext->Actual_Block_Device;
 		gui_print("Formatting sd-ext as %s...\n", ext_format.c_str());
 		LOGINFO("Formatting sd-ext after partitioning, command: '%s'\n", Command.c_str());
-		TWFunc::Exec_Cmd(Command, result);
+		TWFunc::Exec_Cmd(Command);
 	}
 
 	Update_System_Details();