[archiso] Avoid full path in add_binary

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>

archiso/install/archiso

@@ -6,10 +6,10 @@ build ()
     FILES=""
 
     add_binary /lib/udev/cdrom_id
-    add_binary /sbin/blockdev
-    add_binary /sbin/dmsetup
-    add_binary /sbin/losetup
-    add_binary /bin/mountpoint
+    add_binary blockdev
+    add_binary dmsetup
+    add_binary losetup
+    add_binary mountpoint
 
     add_file /lib/udev/rules.d/60-cdrom_id.rules
     add_file /lib/udev/rules.d/10-dm.rules

archiso/install/archiso_pxe_http

@@ -7,7 +7,7 @@ build ()
     FILES=""
     SCRIPT="archiso_pxe_http"
 
-    add_binary "/usr/bin/curl"
+    add_binary curl
 }
 
 help ()

archiso/install/archiso_pxe_nbd

@@ -7,7 +7,8 @@ build ()
     FILES=""
     SCRIPT="archiso_pxe_nbd"
 
-    add_binary "/usr/sbin/nbd-client" "/bin/nbd-client"
+    add_binary nbd-client
+
     add_file "/lib/initcpio/archiso_pxe_nbd" "/archiso_pxe_nbd"
 }