Skip coverage bits on < go1.2

runtests

@@ -5,7 +5,7 @@ import os
 import sys
 import tempfile
 
-from subprocess import check_call
+from subprocess import check_call, check_output
 
 
 PACKAGE_NAME = os.environ.get(
@@ -16,6 +16,7 @@ PACKAGE_NAME = os.environ.get(
 def main():
     _run('go vet ./...'.split())
 
+    if check_output('go version'.split()).split()[2] >= 'go1.2':
         coverprofiles = []
         for subpackage in ['', 'altsrc']:
             coverprofile = 'cli.coverprofile'
@@ -32,6 +33,8 @@ def main():
         combined = _combine_coverprofiles(coverprofiles)
         _run('go tool cover -func={}'.format(combined.name).split())
         combined.close()
+    else:
+        _run('go test -v ./...'.split())
 
     _run(['gfmxr', '-c', str(_gfmxr_count()), '-s', 'README.md'])
     return 0