Fix NaCl build: tar was called incorrectly.

iphydf · iphydf · commit 20be9a8c5b3c · 2017-01-08T16:37:56.000Z
tar -jxf expects a file.
diff --git a/other/travis/autotools-linux-install b/other/travis/autotools-linux-install
@@ -4,7 +4,7 @@
 
 # Also install vanilla NaCl
 [ -f $CACHE_DIR/lib/amd64/libnacl.a ] || {
-  curl https://hyperelliptic.org/nacl/nacl-20110221.tar.bz2 | tar -jxf
+  curl https://hyperelliptic.org/nacl/nacl-20110221.tar.bz2 | tar jx
   cd nacl-20110221 # pushd
   "./do"
   # "make install"
