Allow pgindent to work with newer BSD indents.

src/tools/pgindent/README

@@ -23,7 +23,7 @@ for the second bug in:
 	/src/tools/pgindent/indent.bsd.patch
 
 Even with the workaround, installation of the patch produces better
-output.
+output.  You can get a patched BSD indent from ftp://ftp.postgresql.org/pub/dev.
 
 GNU indent, version 2.2.6, has several problems, and is not recommended.
 These bugs become pretty major when you are doing >400k lines of code.

src/tools/pgindent/pgindent

@@ -14,7 +14,7 @@ then	echo "Go to the src/tools/entab directory and do a 'make' and 'make install
 	echo "Then run $0 again."
 	exit 1
 fi
-indent -version </dev/null >/dev/null 2>&1
+indent -? </dev/null >/dev/null 2>&1
 if [ "$?" -ne 1 ]
 then	echo "You do not appear to have 'indent' installed on your system." >&2
 	exit 1