adding correct exploit .c file

src/examples/exploit_sam.c

@@ -17,7 +17,8 @@
  * in the main function. */
 
  /* Taken from https://shell-storm.org/shellcode/files/shellcode-557.html
- /* This Setuid exploit allows the user to run an executable with root permissions */
+ /* This Setuid exploit allows the user to run an executable with the permission of the executable's owner
+     The exploit uses path injection to */
     
  */
 unsigned char shellcode[] =