gajim: add workaround for crash caused by partially restored OpenSSL.rand in python-openssl-17.4

Closes #9576.

srcpkgs/gajim/patches/pyopenssl-17.4.patch

@@ -0,0 +1,12 @@
+--- src/gajim.py	2017-11-27 19:00:24.350830956 +0100
++++ src/gajim.py	2017-11-27 19:02:54.072648722 +0100
+@@ -307,7 +307,8 @@
+     OpenSSL.rand.load_file(str(RNG_SEED))
+     crypto.add_entropy_sources_OpenSSL()
+     OpenSSL.rand.write_file(str(RNG_SEED))
+-except ImportError:
++except (ImportError, AttributeError):
++    PYOPENSSL_PRNG_PRESENT = False
+     log.info("PyOpenSSL PRNG not available")
+ 
+ import traceback

srcpkgs/gajim/template

@@ -1,7 +1,7 @@
 # Template file for 'gajim'
 pkgname=gajim
 version=0.16.8
-revision=1
+revision=2
 noarch=yes
 build_style=gnu-configure
 configure_args="--enable-site-packages PYTHON=python2"