maintainer-clean.sh: grep and sed are not always in /bin
maintainer-clean.sh: grep and sed are not always in /bin

bd808/pecl-file_formats-yaml,php/pecl-file_formats-yaml,php/pecl-file_formats-yaml,php/pecl-file_formats-yaml,php/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml