add back the files with correct permissions

AUTHORS

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+Authors of GNU MP (in chronological order of initial contribution)
+
+Torbjörn Granlund	Main author
+
+John Amanatides		Original version of mpz/pprime_p.c
+
+Paul Zimmermann		mpn/generic/mul_fft.c, now defunct dc_divrem_n.c,
+			rootrem.c, old mpz/powm.c, old toom3 code.
+
+Ken Weber		Now defunct mpn/generic/bdivmod.c, old mpn/generic/gcd.c
+
+Bennet Yee		Previous versions of mpz/jacobi.c mpz/legendre.c
+
+Andreas Schwab		mpn/m68k/lshift.asm, mpn/m68k/rshift.asm
+
+Robert Harley		Old mpn/generic/mul_n.c, previous versions of files in
+			mpn/arm
+
+Linus Nordberg		Random number framework, original autoconfery
+
+Kent Boortz		MacOS 9 port, now defunct.
+
+Kevin Ryde		Most x86 assembly, new autoconfery, and countless other
+			things (please see the GMP manual for complete list)
+
+Gerardo Ballabio	gmpxx.h and C++ istream input
+
+Pedro Gimeno		Mersenne Twister random generator, other random number
+			revisions
+
+Jason Moxham		Previous versions of mpz/fac_ui.c and gen-fac_ui.c
+
+Niels Möller		gen-jacobitab.c,
+			mpn/generic/hgcd2.c, hgcd.c, hgcd_step.c,
+			hgcd_appr.c, hgcd_matrix.c, hgcd_reduce.c,
+			gcd.c, gcd_11.c, gcd_22.c, gcdext.c, matrix22_mul.c,
+			gcdext_1.c, gcd_subdiv_step.c, gcd_lehmer.c,
+			gcdext_subdiv_step.c, gcdext_lehmer.c,
+			jacobi_2.c, jacbase.c, hgcd_jacobi.c, hgcd2_jacobi.c,
+			matrix22_mul1_inverse_vector.c,
+			toom_interpolate_7pts, mulmod_bnm1.c, dcpi1_bdiv_qr.c,
+			dcpi1_bdiv_q.c, sbpi1_bdiv_qr.c, sbpi1_bdiv_q.c,
+			sec_invert.c,
+			toom_eval_dgr3_pm1.c, toom_eval_dgr3_pm2.c,
+			toom_eval_pm1.c, toom_eval_pm2.c, toom_eval_pm2exp.c,
+			divexact.c, mod_1_1.c, div_qr_2.c,
+			div_qr_2n_pi1.c, div_qr_2u_pi1.c, broot.c,
+			brootinv.c,
+			mpn/x86/k7/invert_limb.asm, mod_1_1.asm,
+			mpn/x86_64/invert_limb.asm,
+			invert_limb_table.asm, mod_1_1.asm,
+			div_qr_2n_pi1.asm, div_qr_2u_pi1.asm,
+			mpn/x86_64/core2/aorsmul_1.asm,
+			mpz/nextprime.c, divexact.c, gcd.c, gcdext.c,
+			jacobi.c, combit.c, mini-gmp/mini-gmp.c.
+
+Marco Bodrato		mpn/generic/toom44_mul.c, toom4_sqr.c, toom53_mul.c,
+			toom62_mul.c, toom43_mul.c, toom52_mul.c, toom54_mul.c,
+			toom_interpolate_6pts.c, toom_couple_handling.c,
+			toom63_mul.c, toom_interpolate_8pts.c,
+			toom6h_mul.c, toom6_sqr.c, toom_interpolate_12pts.c,
+			toom8h_mul.c, toom8_sqr.c, toom_interpolate_16pts.c,
+			mulmod_bnm1.c, sqrmod_bnm1.c, nussbaumer_mul.c,
+			toom_eval_pm2.c, toom_eval_pm2rexp.c,
+			fib2m.c, strongfibo.c,
+			mullo_n.c, sqrlo.c, invert.c, invertappr.c;
+			mpn/x86/atom/aors_n.asm, aorslshC_n.asm,
+			aorrlsh{1,2,C}_n.asm, aorsmul_1.asm, logops_n.asm,
+			sublsh2_n.asm, rshift.asm; primesieve.c;
+			mpz/fac_ui.c, 2fac_ui.c, mfac_uiui.c, oddfac_1.c,
+			primorial_ui.c, prodlimbs.c, bin_ui.c,
+			lucmod.c, stronglucas.c,
+			goetgheluck_bin_uiui.c; mini-gmp/mini-mpq.c.
+
+David Harvey		mpn/generic/add_err1_n.c, add_err2_n.c,
+			add_err3_n.c, sub_err1_n.c, sub_err2_n.c,
+			sub_err3_n.c, mulmid_basecase.c, mulmid_n.c,
+			toom42_mulmid.c,
+			mpn/x86_64/mul_basecase.asm, aors_err1_n.asm,
+			aors_err2_n.asm, aors_err3_n.asm,
+			mulmid_basecase.asm,
+			mpn/x86_64/core2/aors_err1_n.asm.
+
+Martin Boij		mpn/generic/perfpow.c
+
+Marc Glisse		gmpxx.h improvements
+
+David Miller		mpn/sparc32/ultrasparct1/{addmul_1,mul_1,submul_1}.asm
+			mpn/sparc64/ultrasparct3/{mul_1,addmul_1,submul_1}.asm
+			mpn/sparc64/ultrasparct3/{add_n,sub_n}.asm
+			mpn/sparc64/ultrasparct3/{popcount,hamdist}.asm
+			mpn/sparc64/ultrasparct3/cnd_aors_n.asm
+			mpn/sparc64/{rshift,lshift,lshiftc}.asm
+			mpn/sparc64/tabselect.asm
+
+Mark Sofroniou		mpn/generic/mul_fft.c type cleanup.
+
+Ulrich Weigand		Changes to support powerpc64le:
+			configure.ac, mpn/powerpc64/{elf,aix,darwin}.m4,
+			mpn/powerpc32/{darwin,elf}.m4,
+			mpn/powerpc64/mode64/{dive_1,divrem_1,divrem_2}.asm,
+			mpn/powerpc64/mode64/{gcd_1,invert_limb,mode1o}.asm,
+			mpn/powerpc64/mode64/{mod_1_1,mod_1_4}.asm,
+			mpn/powerpc64/mode64/p7/gcd_1.asm,
+			mpn/powerpc64/p6/{lshift,lshiftc,rshift}.asm,
+			mpn/powerpc64/vmx/popcount.asm.