Update azure-pipelines.yml

azure-pipelines.yml

@@ -157,7 +157,7 @@ jobs:
         alpine() { /alpine/enter-chroot -u "$USER" "$@"; }
         sudo sh alpine-chroot-install -p 'build-base gfortran perl linux-headers sudo'
         alpine make DYNAMIC_ARCH=1 BINARY=64
-        alpine bash -c "echo ''|sudo -S make DYNAMIC_ARCH=1 BINARY=64 install"
+        alpine sh -c "echo ''|sudo -S make DYNAMIC_ARCH=1 BINARY=64 install"
         alpine ls -l /opt/OpenBLAS/include
         alpine echo "// tests that inclusion of openblas_config.h works with musl" >test_install.c
         alpine echo "#include <openblas_config.h>" >>test_install.c