Fix acprep script

The script has a syntax error, caused by commit 815305b9: in escape_string()
function the first argument to re.sub() was probably changed unintentionally.

This reverts this one line. To test, I used acprep to build the binary locally,
which succeeded. More testing might be needed, I don't have enough context to
do that.

1 files changed, 1 insertions, 1 deletions

diff --git a/acprep b/acprep
index 70b28e03..830e8c60 100755
--- a/acprep
+++ b/acprep
@@ -840,7 +840,7 @@ class PrepareBuild(CommandLineApp):
         PrepareBuild.__dict__['setup_flavor_' + self.current_flavor](self)
 
     def escape_string(self, data):
-        return re.sub(r'(['\\\\])', '\\\\\\1', data)
+        return re.sub(r'(["\\\\])', '\\\\\\1', data)
 
     def finalize_config(self):
         self.setup_flavor()