update test results

$ GIT_PERF_REPEAT_COUNT=30 GIT_PERF_LARGE_REPO=~/g/linux GIT_PERF_MAKE_COMMAND='grep -q LIBPCRE2 Makefile && make -j8 NO_PCRE=UnfortunatelyYes USE_LIBPCRE2=YesPlease CC=~/perl5/installed/bin/gcc NO_R_TO_GCC_LINKER=YesPlease CFLAGS=-O3 LIBPCREDIR=/home/avar/g/pcre2/inst LDFLAGS=-Wl,-rpath,/home/avar/g/pcre2/inst/lib || make -j8 USE_LIBPCRE=YesPlease CC=~/perl5/installed/bin/gcc NO_R_TO_GCC_LINKER=YesPlease CFLAGS=-O3 LIBPCREDIR=/home/avar/g/pcre/inst LDFLAGS=-Wl,-rpath,/home/avar/g/pcre/inst/lib' ./run v2.13.0-rc2 HEAD -- p7820-grep-engines.sh p7821-grep-engines-fixed.sh
Test                                           v2.13.0-rc2       HEAD
---------------------------------------------------------------------------------------
7820.1: basic grep how.to                      0.31(1.20+0.46)   0.19(0.33+0.55) -38.7%
7820.2: extended grep how.to                   0.31(1.19+0.46)   0.19(0.33+0.55) -38.7%
7820.3: perl grep how.to                       0.30(1.12+0.46)   0.19(0.28+0.62) -36.7%
7820.5: basic grep ^how to                     0.31(1.24+0.39)   0.19(0.32+0.56) -38.7%
7820.6: extended grep ^how to                  0.30(1.18+0.44)   0.19(0.22+0.66) -36.7%
7820.7: perl grep ^how to                      0.55(2.68+0.41)   0.19(0.32+0.56) -65.5%
7820.9: basic grep [how] to                    0.47(2.17+0.44)   0.22(0.39+0.54) -53.2%
7820.10: extended grep [how] to                0.47(2.21+0.40)   0.22(0.39+0.55) -53.2%
7820.11: perl grep [how] to                    0.53(2.64+0.39)   0.21(0.37+0.58) -60.4%
7820.13: basic grep \(e.t[^ ]*\|v.ry\) rare    0.63(3.16+0.48)   0.21(0.48+0.53) -66.7%
7820.14: extended grep (e.t[^ ]*|v.ry) rare    0.64(3.28+0.38)   0.21(0.45+0.57) -67.2%
7820.15: perl grep (e.t[^ ]*|v.ry) rare        1.00(5.77+0.37)   0.21(0.50+0.53) -79.0%
7820.17: basic grep m\(ú\|u\)ult.b\(æ\|y\)te   0.31(1.23+0.51)   0.19(0.30+0.58) -38.7%
7820.18: extended grep m(ú|u)ult.b(æ|y)te      0.32(1.26+0.47)   0.19(0.27+0.61) -40.6%
7820.19: perl grep m(ú|u)ult.b(æ|y)te          0.36(1.61+0.37)   0.19(0.30+0.57) -47.2%
7821.1: fixed grep int                         0.52(1.71+0.64)   0.43(1.11+0.72) -17.3%
7821.2: basic grep int                         0.54(1.62+0.70)   0.42(1.14+0.62) -22.2%
7821.3: extended grep int                      0.53(1.67+0.64)   0.51(1.17+0.62) -3.8%
7821.4: perl grep int                          0.53(1.71+0.59)   0.72(1.13+0.63) +35.8%
7821.6: fixed grep -i int                      0.58(1.86+0.67)   0.47(1.32+0.62) -19.0%
7821.7: basic grep -i int                      0.62(1.94+0.61)   0.57(1.25+0.72) -8.1%
7821.8: extended grep -i int                   0.82(1.86+0.68)   0.50(1.41+0.56) -39.0%
7821.9: perl grep -i int                       0.70(1.88+0.68)   0.56(1.25+0.70) -20.0%
7821.11: fixed grep æ                          0.33(1.30+0.43)   0.19(0.22+0.64) -42.4%
7821.12: basic grep æ                          0.33(1.35+0.38)   0.18(0.26+0.59) -45.5%
7821.13: extended grep æ                       0.33(1.20+0.52)   0.18(0.32+0.53) -45.5%
7821.14: perl grep æ                           0.33(1.31+0.40)   0.18(0.28+0.56) -45.5%
7821.16: fixed grep -i æ                       0.25(0.87+0.50)   0.18(0.24+0.60) -28.0%
7821.17: basic grep -i æ                       0.26(0.88+0.48)   0.18(0.24+0.60) -30.8%
7821.18: extended grep -i æ                    0.26(0.92+0.44)   0.18(0.24+0.61) -30.8%
7821.19: perl grep -i æ                        0.25(0.79+0.45)   0.19(0.32+0.56) -24.0%