Fixed typo.

hiker · hiker · commit 4ea8bfd4aba5 · 2015-11-09T09:17:45.000+11:00
diff --git a/.travis.yml b/.travis.yml
@@ -25,7 +25,7 @@ before_install:
 before_script:
   - export THREADS=`nproc`
   # Unfortunately using all threads crashes g++: "g++: internal compiler error: Killed (program cc1plus)"
-  - exort THREADS=4
+  - export THREADS=4
   - echo "THREADS = $THREADS"
 
 script:
