one more escape issue

Author: sebgoa

node-10.x/Dockerfile

@@ -4,7 +4,7 @@ WORKDIR /opt
 RUN apk --no-cache add curl \
     && API_VERSION=$(curl -sI https://github.com/triggermesh/aws-custom-runtime/releases/latest | grep "Location:" | awk -F "/" '{print $NF}' | tr -d "\r") \
     && RUNTIME_VERSION=$(curl -sI https://github.com/triggermesh/knative-lambda-runtime/releases/latest | grep "Location:" | awk -F "/" '{print $NF}' | tr -d "\r") \
-    && curl -sL https://github.com/triggermesh/aws-custom-runtime/releases/download/\${API_VERSION}/aws-custom-runtime > aws-custom-runtime \
+    && curl -sL https://github.com/triggermesh/aws-custom-runtime/releases/download/${API_VERSION}/aws-custom-runtime > aws-custom-runtime \
     && chmod +x aws-custom-runtime \
     && curl -sL https://github.com/triggermesh/knative-lambda-runtime/archive/${RUNTIME_VERSION}.tar.gz | tar -xz knative-lambda-runtime-${RUNTIME_VERSION}/node-10.x \
     && mv knative-lambda-runtime-${RUNTIME_VERSION}/node-10.x/* .

node-4.x/Dockerfile

@@ -4,7 +4,7 @@ WORKDIR /opt
 RUN apk --no-cache add curl \
     && API_VERSION=$(curl -sI https://github.com/triggermesh/aws-custom-runtime/releases/latest | grep "Location:" | awk -F "/" '{print $NF}' | tr -d "\r") \
     && RUNTIME_VERSION=$(curl -sI https://github.com/triggermesh/knative-lambda-runtime/releases/latest | grep "Location:" | awk -F "/" '{print $NF}' | tr -d "\r") \
-    && curl -sL https://github.com/triggermesh/aws-custom-runtime/releases/download/\${API_VERSION}/aws-custom-runtime > aws-custom-runtime \
+    && curl -sL https://github.com/triggermesh/aws-custom-runtime/releases/download/${API_VERSION}/aws-custom-runtime > aws-custom-runtime \
     && chmod +x aws-custom-runtime \
     && curl -sL https://github.com/triggermesh/knative-lambda-runtime/archive/${RUNTIME_VERSION}.tar.gz | tar -xz knative-lambda-runtime-${RUNTIME_VERSION}/node-4.x \
     && mv knative-lambda-runtime-${RUNTIME_VERSION}/node-4.x/* .

python-2.7/Dockerfile

@@ -4,7 +4,7 @@ WORKDIR /opt
 RUN apk --no-cache add curl \
     && API_VERSION=$(curl -sI https://github.com/triggermesh/aws-custom-runtime/releases/latest | grep "Location:" | awk -F "/" '{print $NF}' | tr -d "\r") \
     && RUNTIME_VERSION=$(curl -sI https://github.com/triggermesh/knative-lambda-runtime/releases/latest | grep "Location:" | awk -F "/" '{print $NF}' | tr -d "\r") \
-    && curl -sL https://github.com/triggermesh/aws-custom-runtime/releases/download/\${API_VERSION}/aws-custom-runtime > aws-custom-runtime \
+    && curl -sL https://github.com/triggermesh/aws-custom-runtime/releases/download/${API_VERSION}/aws-custom-runtime > aws-custom-runtime \
     && chmod +x aws-custom-runtime \
     && curl -sL https://github.com/triggermesh/knative-lambda-runtime/archive/${RUNTIME_VERSION}.tar.gz | tar -xz knative-lambda-runtime-${RUNTIME_VERSION}/python-2.7 \
     && mv knative-lambda-runtime-${RUNTIME_VERSION}/python-2.7/* .

python-3.7/Dockerfile

@@ -4,7 +4,7 @@ WORKDIR /opt
 RUN apk --no-cache add curl \
     && API_VERSION=$(curl -sI https://github.com/triggermesh/aws-custom-runtime/releases/latest | grep "Location:" | awk -F "/" '{print $NF}' | tr -d "\r") \
     && RUNTIME_VERSION=$(curl -sI https://github.com/triggermesh/knative-lambda-runtime/releases/latest | grep "Location:" | awk -F "/" '{print $NF}' | tr -d "\r") \
-    && curl -sL https://github.com/triggermesh/aws-custom-runtime/releases/download/\${API_VERSION}/aws-custom-runtime > aws-custom-runtime \
+    && curl -sL https://github.com/triggermesh/aws-custom-runtime/releases/download/${API_VERSION}/aws-custom-runtime > aws-custom-runtime \
     && chmod +x aws-custom-runtime \
     && curl -sL https://github.com/triggermesh/knative-lambda-runtime/archive/${RUNTIME_VERSION}.tar.gz | tar -xz knative-lambda-runtime-${RUNTIME_VERSION}/python-3.7 \
     && mv knative-lambda-runtime-${RUNTIME_VERSION}/python-3.7/* .