Fixed DEFAULT_PID_FILE typo to fix "var/run" creation during "make install".
NP: in 3.1 specifically this only affects packages whih patch the PID location
$(INSTALL_DATA) squid.conf.documented $(DESTDIR)$(DEFAULT_CONFIG_FILE).documented; \
$(mkinstalldirs) $(DESTDIR)$(DEFAULT_LOG_PREFIX); \
$(mkinstalldirs) $(DESTDIR)$(DEFAULT_SWAP_DIR); \
- $(mkinstalldirs) $(DESTDIR)`dirname $(DEFAULT_PIDFILE)`
+ $(mkinstalldirs) $(DESTDIR)`dirname $(DEFAULT_PID_FILE)`
uninstall-local: squid.conf.default
@$(SHELL) $(top_srcdir)/scripts/remove-cfg.sh "$(RM)" $(DESTDIR)$(DEFAULT_MIME_TABLE) $(srcdir)/mime.conf.default