build: cosmetic: coding: break a CPPFLAGS line
Matches our general scheme and helps readability of an upcoming patch.
Change-Id: I174086a988b51b6e80f3661609069b69a3d41cc7
diff --git a/src/coding/Makefile.am b/src/coding/Makefile.am
index 5a055c8..e19b187 100644
--- a/src/coding/Makefile.am
+++ b/src/coding/Makefile.am
@@ -3,7 +3,9 @@
# documentation before making any modification
LIBVERSION = 0:0:0
-AM_CPPFLAGS = -I$(top_srcdir)/include $(TALLOC_CFLAGS)
+AM_CPPFLAGS = \
+ -I"$(top_srcdir)/include" \
+ $(TALLOC_CFLAGS)
AM_CFLAGS = -Wall
lib_LTLIBRARIES = libosmocoding.la