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-rw-r--r--coverage/cmdline.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/coverage/cmdline.py b/coverage/cmdline.py
index 81901a85..6a840cdf 100644
--- a/coverage/cmdline.py
+++ b/coverage/cmdline.py
@@ -94,7 +94,7 @@ class CoverageScript:
'-x': 'execute',
'-o:': 'omit=',
}
- short_opts = ''.join(map(lambda o: o[1:], optmap.keys()))
+ short_opts = ''.join([o[1:] for o in optmap.keys()])
long_opts = optmap.values()
options, args = getopt.getopt(argv, short_opts, long_opts)
for o, a in options: