Solaris commands for process management - pldd

pldd – list dynamic libraries, associated with process, similar to ldd for executable

 bash-3.2# ps -efl|grep send
 0 S    smmsp   867     1   0  40 20        ?   2296        ? 18:02:34 ?           0:00 /usr/lib/sendmail -Ac -q15m
bash-3.2# pldd 867
867:    /usr/lib/sendmail -Ac -q15m
/lib/libumem.so.1
/lib/libresolv.so.2
/lib/libsocket.so.1
/lib/libnsl.so.1
/usr/lib/libldap.so.5
/usr/lib/libsldap.so.1
/usr/sfw/lib/libwrap.so.1.0
/lib/librt.so.1
/usr/sfw/lib/libssl.so.0.9.7
/usr/sfw/lib/libcrypto.so.0.9.7
/lib/libc.so.1
/lib/libscf.so.1
/lib/libdoor.so.1
/lib/libaio.so.1
/lib/libmd.so.1
/lib/libuutil.so.1
/lib/libgen.so.1
/usr/sfw/lib/libssl_extra.so.0.9.7
/usr/sfw/lib/libcrypto_extra.so.0.9.7
/usr/lib/mps/libnspr4.so
/lib/libpthread.so.1
/lib/libdl.so.1
/lib/libmp.so.2
/usr/lib/libsasl.so.1
/usr/lib/mps/libplc4.so
/usr/lib/mps/libnss3.so
/usr/lib/mps/libnssutil3.so
/usr/lib/mps/libplds4.so
/usr/lib/mps/libssl3.so
/lib/libthread.so.1
But let execure ldd command for the same file:
bash-3.2# ldd /usr/lib/sendmail
        libresolv.so.2 =>        /lib/libresolv.so.2
        libsocket.so.1 =>        /lib/libsocket.so.1
        libnsl.so.1 =>   /lib/libnsl.so.1
        libldap.so.5 =>  /usr/lib/libldap.so.5
        libsldap.so.1 =>         /usr/lib/libsldap.so.1
        libwrap.so.1 =>  /usr/sfw/lib/libwrap.so.1
        libumem.so.1 =>  /lib/libumem.so.1
        librt.so.1 =>    /lib/librt.so.1
        libssl.so.0.9.7 =>       /usr/sfw/lib/libssl.so.0.9.7
        libcrypto.so.0.9.7 =>    /usr/sfw/lib/libcrypto.so.0.9.7
        libc.so.1 =>     /lib/libc.so.1
        libmp.so.2 =>    /lib/libmp.so.2
        libmd.so.1 =>    /lib/libmd.so.1
        libscf.so.1 =>   /lib/libscf.so.1
        libsasl.so.1 =>  /usr/lib/libsasl.so.1
        libnspr4.so =>   /usr/lib/mps/libnspr4.so
        libplc4.so =>    /usr/lib/mps/libplc4.so
        libnss3.so =>    /usr/lib/mps/libnss3.so
        libssl3.so =>    /usr/lib/mps/libssl3.so
        libdoor.so.1 =>  /lib/libdoor.so.1
        libaio.so.1 =>   /lib/libaio.so.1
        libuutil.so.1 =>         /lib/libuutil.so.1
        libgen.so.1 =>   /lib/libgen.so.1
        libpthread.so.1 =>       /lib/libpthread.so.1
        libdl.so.1 =>    /lib/libdl.so.1
        libnssutil3.so =>        /usr/lib/mps/libnssutil3.so
        libplds4.so =>   /usr/lib/mps/libplds4.so
        libthread.so.1 =>        /lib/libthread.so.1
        libssl_extra.so.0.9.7 =>         /usr/sfw/lib/libssl_extra.so.0.9.7
        libcrypto_extra.so.0.9.7 =>      /usr/sfw/lib/libcrypto_extra.so.0.9.7
        libm.so.2 =>     /lib/libm.so.2

Results from both commands are almost the same :-) Why? Ask SUN/Oracle