Merge pull request #341 from evoskuil/master

Replace tab with spaces.

Author: evoskuil

templates/shared/common_install_shell_artifacts.gsl

@@ -1161,7 +1161,7 @@ build_from_tarball_boost()
         "$BOOST_CXXFLAGS" \\
         "$BOOST_LINKFLAGS" \\
         "link=$BOOST_LINK" \\
-	"warnings=off" \\
+        "warnings=off" \\
         "boost.locale.iconv=$BOOST_ICU_ICONV" \\
         "boost.locale.posix=$BOOST_ICU_POSIX" \\
         "-sNO_BZIP2=1" \\