ARM build docs easier for copy&paste

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176033 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/HowToBuildOnARM.rst b/docs/HowToBuildOnARM.rst
index 13de7d1..32ae39b 100644
--- a/docs/HowToBuildOnARM.rst
+++ b/docs/HowToBuildOnARM.rst
@@ -36,8 +36,8 @@
 
    .. code-block:: bash
 
-     ./configure --build=armv7l-unknown-linux-gnueabihf
-     --host=armv7l-unknown-linux-gnueabihf
-     --target=armv7l-unknown-linux-gnueabihf --with-cpu=cortex-a9
-     --with-float=hard --with-abi=aapcs-vfp --with-fpu=neon
-     --enable-targets=arm --disable-optimized --enable-assertions
+     ./configure --build=armv7l-unknown-linux-gnueabihf \
+     --host=armv7l-unknown-linux-gnueabihf \
+     --target=armv7l-unknown-linux-gnueabihf --with-cpu=cortex-a9 \
+     --with-float=hard --with-abi=aapcs-vfp --with-fpu=neon \
+     --enable-targets=arm --enable-optimized --enable-assertions