expect: fix shared object file cannot be opened

When we require Expect package in tcl script, we will get following error:

couldn't load file "/usr/lib/expect5.45/libexpect5.45.so": /usr/lib/expect5.45/libexpect5.45.so: cannot open shared object file: No such file or directory
    while executing
"load /usr/lib/expect5.45/libexpect5.45.so"
    ("package ifneeded Expect 5.45" script)
    invoked from within
"package require Expect"
    (file "hello.tcl" line 3)

This patch fixes this issue.

(From OE-Core rev: 43813ddfa8cade9ea1c5de24dcd4e275b1486cff)

Signed-off-by: Chong Lu <Chong.Lu@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/expect/expect_5.45.bb

@@ -35,6 +35,7 @@ do_install_append() {
         install -m 0755 ${S}/fixline1           ${D}${libdir}/expect${PV}/
         install -m 0755 ${S}/example/*          ${D}${libdir}/expect${PV}/
         rm ${D}${libdir}/expect${PV}/libexpect*.so
+        sed -e 's|$dir|${libdir}|' -i ${D}${libdir}/expect${PV}/pkgIndex.tcl
 }
 
 EXTRA_OECONF += "--includedir=${STAGING_INCDIR} \