Get rid of ncurses' TRUE and FALSE

Get rid of TRUE and FALSE ncurses' defines used for boolean variables
initialization. This fix also helps build without ncurses support.
diff --git a/src/main.cpp b/src/main.cpp
index 7a1b976..9f53b46 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -354,7 +354,7 @@
 {
 	int option_index;
 	int c;
-	bool wantreport = FALSE;
+	bool wantreport = false;
 	char filename[4096];
 	char workload[4096] = {0,};
 	int  iterations = 1;
@@ -396,7 +396,7 @@
 				break;
 
 			case 'h': /* html report */
-				wantreport = TRUE;
+				wantreport = true;
 				reporttype = 1;
 				sprintf(filename, "%s", optarg ? optarg : "PowerTOP.html" );
 				break;
@@ -417,7 +417,7 @@
 				break;
 				
 			case 'C': /* csv report*/
-				wantreport = TRUE;
+				wantreport = true;
 				reporttype = 0;
 				sprintf(filename, "%s", optarg ? optarg : "PowerTOP.csv");
 				break;
diff --git a/src/tuning/tuning.cpp b/src/tuning/tuning.cpp
index 1a90417..865d986 100644
--- a/src/tuning/tuning.cpp
+++ b/src/tuning/tuning.cpp
@@ -43,7 +43,7 @@
 #include "../lib.h"
 
 static void sort_tunables(void);
-static bool should_clear = FALSE;
+static bool should_clear = false;
 
 #ifndef DISABLE_NCURSES
 class tuning_window: public tab_window {
@@ -103,7 +103,7 @@
 		return;
 
 	if (should_clear) {
-		should_clear = FALSE;
+		should_clear = false;
 		wclear(win);
 	}
 
@@ -185,7 +185,7 @@
 void tuning_window::window_refresh()
 {
 	clear_tuning();
-	should_clear = TRUE;
+	should_clear = true;
 	init_tuning();
 }