* one more round of requirements shuffling, the base packages seem to

be declared properly, now
* improve formatting of recipe files for better readability and better
  compatibility with showing diffs (when moving specification lines)
* add/improve DESCRIPTION where it was just a copy of SUMMARY

sys-devel/m4/m4-1.4.16.recipe

@@ -1,19 +1,43 @@
-SUMMARY="m4 - GNU macro processor" 
-DESCRIPTION="m4 - GNU macro processor." 
+SUMMARY="A macro processor" 
+DESCRIPTION="
+	GNU M4 is an implementation of the traditional Unix macro processor. 
+	It is mostly SVR4 compatible although it has some extensions (for 
+	example, handling more than 9 positional parameters to macros). 
+	GNU M4 also has built-in functions for including files, running shell 
+	commands, doing arithmetic, etc.
+
+	M4 is a macro processor in the sense that it copies its input to the 
+	output expanding macros as it goes. Macros are either builtin or 
+	user-defined and can take any number of arguments. Besides just doing 
+	macro expansion, m4 has builtin functions for including named files, 
+	running UNIX commands, doing integer arithmetic, manipulating text in 
+	various ways, recursion etc... M4 can be used either as a front-end to 
+	a compiler or as a macro processor in its own right.
+
+	One of the biggest users of M4 is the GNU Autoconf project.
+	" 
 HOMEPAGE="http://www.gnu.org/software/m4/" 
 SRC_URI="http://ftp.gnu.org/gnu/m4/m4-1.4.16.tar.gz"
 CHECKSUM_MD5="a5dfb4f2b7370e9d34293d23fd09b280"
 REVISION="3"
 ARCHITECTURES="x86_gcc2 ?x86"
 
-PROVIDES="m4 = $portVersion compat >= 1.4
-	cmd:m4 = $portVersion compat >= 1.4"
-REQUIRES="haiku >= $haikuVersion"
-BUILD_REQUIRES="cmd:sed"
-BUILD_PREREQUIRES="haiku-devel >= $haikuVersion
+PROVIDES="
+	m4 = $portVersion compat >= 1.4
+	cmd:m4 = $portVersion compat >= 1.4
+	"
+REQUIRES="
+	haiku >= $haikuVersion
+	"
+BUILD_REQUIRES="
+	cmd:sed
+	"
+BUILD_PREREQUIRES="
+	haiku-devel >= $haikuVersion
 	cmd:gcc
 	cmd:ld
-	cmd:make"
+	cmd:make
+	"
 
 SOURCE_DIR="$portVersionedName"