Merge pull request #45 from cisagov/bug/fix_overly_matching_sed_command

Fix overly match-happy sed commands

bump-version

@@ -25,6 +25,9 @@ END_OF_LINE
 )
 
 old_version=$(< "$VERSION_FILE")
+# Comment out periods so they are interpreted as periods and don't
+# just match any character
+old_version_regex=${old_version//\./\\\.}
 new_version="$old_version"
 
 bump_part=""
@@ -143,9 +146,9 @@ if [ "$with_prerelease" = true ]; then
 fi
 
 tmp_file=/tmp/version.$$
-sed "s/$old_version/$new_version/" $VERSION_FILE > $tmp_file
+sed "s/$old_version_regex/$new_version/" $VERSION_FILE > $tmp_file
 mv $tmp_file $VERSION_FILE
-sed "s/$old_version/$new_version/" $README_FILE > $tmp_file
+sed "s/$old_version_regex/$new_version/" $README_FILE > $tmp_file
 mv $tmp_file $README_FILE
 git add $VERSION_FILE $README_FILE
 git commit --message "$commit_prefix version from $old_version to $new_version"