using stdbool

1. Using stdbool.h for bool
2. Changed formatting for output on command complete/fail.

src/tasks.c

@@ -3,13 +3,12 @@
 #include <errno.h>
 #include <assert.h>
 #include <string.h>
+#include <stdbool.h>
 #include "sha1.h"
 #include "lookup_list.h"
 
 #define MAX_TASKS 5
 
-typedef enum {false, true} bool;
-
 typedef struct TASKS_str_linked_list{
   char *data;
   struct TASKS_str_linked_list *next;
@@ -289,9 +288,9 @@ void TASKS_do_tasks_ifchange(char *filename){
 	perror(cmd);
       
       if(r_code != EXIT_SUCCESS)
-	printf("[✗] FAILED COMMAND : %s\n[✗] C system() function return value : %d\n", cmd, r_code);
+	printf("[✗] FAILED COMMAND : %s ; C system() function return value : %d\n", cmd, r_code);
       else
-	printf("[✔] COMPLETED COMMAND : %s\n[✔] C system() function return value : %d\n", cmd, r_code);
+	printf("[✔] COMPLETED COMMAND : %s ; C system() function return value : %d\n", cmd, r_code);
       cll = cll->next;
     }
     printf("\n");