convert low-level (used by testing) packages to
whole-package compilation.  new Makefiles,
tests now in separate package

	bytes
	flag
	fmt
	io
	math
	once
	os
	reflect
	strconv
	sync
	time
	utf8

delete import "xxx" in package xxx.

inside package xxx, xxx is not declared
anymore so s/xxx.//g

delete file and package level forward declarations.

note the new internal_test.go and sync
and strconv to provide public access to
internals during testing.  the installed version
of the package omits that file and thus does
not open the internals to all clients.

R=r
OCL=33065
CL=33097
diff --git a/src/pkg/math/log.go b/src/pkg/math/log.go
index 603a935..4f9a376 100644
--- a/src/pkg/math/log.go
+++ b/src/pkg/math/log.go
@@ -4,7 +4,6 @@
 
 package math
 
-import "math"
 
 // The original C code, the long comment, and the constants
 // below are from FreeBSD's /usr/src/lib/msun/src/e_log.c
@@ -33,19 +32,17 @@
 //		 = 2s + 2/3 s**3 + 2/5 s**5 + .....,
 //	     	 = 2s + s*R
 //      We use a special Reme algorithm on [0,0.1716] to generate
-// 	a polynomial of degree 14 to approximate R The maximum error
+//	a polynomial of degree 14 to approximate R.  The maximum error
 //	of this polynomial approximation is bounded by 2**-58.45. In
 //	other words,
 //		        2      4      6      8      10      12      14
 //	    R(z) ~ L1*s +L2*s +L3*s +L4*s +L5*s  +L6*s  +L7*s
-//  	(the values of L1 to L7 are listed in the program)
-//	and
+//	(the values of L1 to L7 are listed in the program) and
 //	    |      2          14          |     -58.45
 //	    | L1*s +...+L7*s    -  R(z) | <= 2
 //	    |                             |
 //	Note that 2s = f - s*f = f - hfsq + s*hfsq, where hfsq = f*f/2.
-//	In order to guarantee error in log below 1ulp, we compute log
-//	by
+//	In order to guarantee error in log below 1ulp, we compute log by
 //		log(1+f) = f - s*(f - R)	(if f is not too large)
 //		log(1+f) = f - (hfsq - s*(hfsq+R)).	(better accuracy)
 //