build: replace the deprecated find argument -perm +0100 with /0100 (#19480)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 45434

include/image.mk

@@ -244,8 +244,8 @@ endef
 
 define Image/mkfs/prepare/default
 	# Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
-	- $(FIND) $(TARGET_DIR) -type f -not -perm +0100 -not -name 'ssh_host*' -not -name 'shadow' -print0 | $(XARGS) -0 chmod u+rw,g+r,o+r
-	- $(FIND) $(TARGET_DIR) -type f -perm +0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
+	- $(FIND) $(TARGET_DIR) -type f -not -perm /0100 -not -name 'ssh_host*' -not -name 'shadow' -print0 | $(XARGS) -0 chmod u+rw,g+r,o+r
+	- $(FIND) $(TARGET_DIR) -type f -perm /0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 	- $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 	$(INSTALL_DIR) $(TARGET_DIR)/tmp $(TARGET_DIR)/overlay
 	chmod 1777 $(TARGET_DIR)/tmp