Regressions on master at commit r12-6639 vs commit r12-6619 on Linux/i686

[H.J. Lu]

New failures:
FAIL: check-MAINTAINERS.py
ERROR: g++.dg/gcov/gcov-17.C  : error executing dg-final: can't read "script": no such variable
ERROR: g++.dg/gcov/pr98273.C  : error executing dg-final: can't read "script": no such variable

New passes:
FAIL: g++.dg/torture/pr57993-2.C   -O0  (test for excess errors)
FAIL: g++.dg/torture/pr57993-2.C   -O1  (test for excess errors)
FAIL: g++.dg/torture/pr57993-2.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: g++.dg/torture/pr57993-2.C   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
FAIL: g++.dg/torture/pr57993-2.C   -O2  (test for excess errors)
FAIL: g++.dg/torture/pr57993-2.C   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: g++.dg/torture/pr57993-2.C   -O3 -g  (test for excess errors)
FAIL: g++.dg/torture/pr57993-2.C   -Os  (test for excess errors)
FAIL: gfortran.dg/gomp/allocate-2.f90   -O   (test for errors, line 36)
FAIL: gfortran.dg/ieee/signaling_3.f90   -O0  execution test
FAIL: gfortran.dg/ieee/signaling_3.f90   -O1  execution test
FAIL: gfortran.dg/ieee/signaling_3.f90   -O2  execution test
FAIL: gfortran.dg/ieee/signaling_3.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/ieee/signaling_3.f90   -O3 -g  execution test
FAIL: gfortran.dg/ieee/signaling_3.f90   -Os  execution test
FAIL: maintainers-verify.sh