makefiles: cleanup indentation

makefiles/bindist.inc.mk

@@ -5,9 +5,9 @@ DIST_FILES += $(BIN_USEMODULE:%=bin/$(BOARD)/%.a)
 # if the file Makefile.distcheck exists, we're executing from within a folder
 # generated by "make bindist".
 ifneq (, $(wildcard Makefile.distcheck))
-	include Makefile.distcheck
+  include Makefile.distcheck
 else
-	DIRS+=$(BIN_DIRS)
+  DIRS+=$(BIN_DIRS)
 endif
 
 bindist: all

makefiles/tools/bossa.inc.mk

@@ -7,20 +7,20 @@ export HEXFILE = $(ELFFILE:.elf=.bin)
 # some arduino boards need to toggle the serial interface a little bit to get
 # them ready for flashing...
 ifneq (,$(BOSSA_ARDUINO_PREFLASH))
-OS := $(shell uname)
-ifeq ($(OS),Linux)
-  STTY_FLAG = -F
-else ifeq ($(OS),Darwin)
-  STTY_FLAG = -f
-endif
+  OS := $(shell uname)
+  ifeq ($(OS),Linux)
+    STTY_FLAG = -F
+  else ifeq ($(OS),Darwin)
+    STTY_FLAG = -f
+  endif
 
-PREFLASHER ?= stty
-PREFFLAGS  ?= $(STTY_FLAG) $(PORT) raw ispeed 1200 ospeed 1200 cs8 -cstopb ignpar eol 255 eof 255
-FLASHDEPS += preflash
+  PREFLASHER ?= stty
+  PREFFLAGS  ?= $(STTY_FLAG) $(PORT) raw ispeed 1200 ospeed 1200 cs8 -cstopb ignpar eol 255 eof 255
+  FLASHDEPS += preflash
 endif
 
 # if we go with the default (BOSSA shipped with RIOT), we download and build
 # the tool if not already done
 ifeq ($(RIOTBASE)/dist/tools/bossa/bossac,$(FLASHER))
-FLASHDEPS += $(RIOTBASE)/dist/tools/bossa/bossac
+  FLASHDEPS += $(RIOTBASE)/dist/tools/bossa/bossac
 endif

makefiles/tools/serial.inc.mk

@@ -7,7 +7,7 @@ else ifeq ($(OS),Darwin)
 endif
 
 ifeq ($(PORT),)
-    $(info Warning: no PORT set!)
+  $(info Warning: no PORT set!)
 endif
 
 export BAUD ?= 115200