tools/patchelf: fix portability issue breaking mac os x builds (#18998)

Signed-off-by: Felix Fietkau <[email protected]>

SVN-Revision: 44493

tools/patchelf/patches/100-portability.patch

@@ -0,0 +1,8 @@
+--- a/configure.ac
++++ b/configure.ac
+@@ -1,4 +1,4 @@
+-AC_INIT([patchelf], m4_esyscmd([echo -n $(cat ./version)]))
++AC_INIT([patchelf], m4_esyscmd([printf $(cat ./version)]))
+ AC_CONFIG_SRCDIR([src/patchelf.cc])
+ AC_CONFIG_AUX_DIR([build-aux])
+ AM_INIT_AUTOMAKE([-Wall -Werror dist-bzip2 foreign color-tests parallel-tests])