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--- vendor/jruby/bin/jruby.bash.orig 2018-02-16 20:50:22 UTC
+++ vendor/jruby/bin/jruby.bash
@@ -244,7 +244,7 @@ do
# Match -Xa.b.c=d to translate to -Da.b.c=d as a java option
-X*)
val=${1:2}
- if expr "$val" : '.*[.]' > /dev/null; then
+ if expr -- "$val" : '.*[.]' > /dev/null; then
java_args=("${java_args[@]}" "-Djruby.${val}")
else
ruby_args=("${ruby_args[@]}" "-X${val}")
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