apply the usual Solaris bandage for grep(1) usage

less/less.spec

@@ -33,7 +33,7 @@ Class:        BASE
 Group:        ShellUtils
 License:      GPL
 Version:      406
-Release:      20070620
+Release:      20070710
 
 #   list of sources
 Source0:      http://www.greenwoodsoftware.com/less/less-%{version}.tar.gz
@@ -78,6 +78,7 @@ AutoReqProv:  no
     CFLAGS="%{l_cflags -O} %{l_cppflags}" \
     CPPFLAGS="%{l_cppflags}" \
     LDFLAGS="%{l_ldflags}" \
+    GREP="grep" \
     ./configure \
         --prefix=%{l_prefix} \
         --mandir=%{l_prefix}/man