attr: cleanup pointless indentation

Signed-off-by: Gustavo Zacarias <gustavo.zacarias@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/attr/attr.mk

@@ -15,15 +15,15 @@ ATTR_LICENSE_FILES = doc/COPYING doc/COPYING.LGPL
 # While the configuration system uses autoconf, the Makefiles are
 # hand-written and do not use automake. Therefore, we have to hack
 # around their deficiencies by passing installation paths.
-ATTR_INSTALL_STAGING_OPTS = 			\
-	prefix=$(STAGING_DIR)/usr 		\
-	exec_prefix=$(STAGING_DIR)/usr 		\
-	PKG_DEVLIB_DIR=$(STAGING_DIR)/usr/lib 	\
+ATTR_INSTALL_STAGING_OPTS = \
+	prefix=$(STAGING_DIR)/usr \
+	exec_prefix=$(STAGING_DIR)/usr \
+	PKG_DEVLIB_DIR=$(STAGING_DIR)/usr/lib \
 	install-dev install-lib
 
-ATTR_INSTALL_TARGET_OPTS = 			\
-	prefix=$(TARGET_DIR)/usr 		\
-	exec_prefix=$(TARGET_DIR)/usr 		\
+ATTR_INSTALL_TARGET_OPTS = \
+	prefix=$(TARGET_DIR)/usr \
+	exec_prefix=$(TARGET_DIR)/usr \
 	install install-lib
 
 HOST_ATTR_INSTALL_OPTS = \