Ensure that semver files are sorted as part of CI

Author: tgross35

ci/style.sh

@@ -1,9 +1,8 @@
-#!/usr/bin/env sh
+#!/bin/sh
 
 set -ex
 
-rustc ci/style.rs && ./style src
-
+rustc ci/style.rs && ./style v
 rustup toolchain install nightly -c rustfmt --allow-downgrade
 rustup override set nightly
 command -v rustfmt
@@ -18,3 +17,13 @@ else
     exit 1
 fi
 
+for file in libc-test/semver/*.txt; do
+    case "$file" in 
+      *TODO*) continue ;;
+    esac
+
+    if ! sort -C "$file"; then
+        echo "Unsorted semver file $file"
+        exit 1
+    fi
+done