SanitizeString: allow '(' and ')'

'(' and ')' are valid in user agent strings, so should be reported
as such in RPC `getpeerinfo`.

Fixes #4537.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/utilstrencodings.cpp b/src/utilstrencodings.cpp
index 2cec3023b5..b9e64c5fe1 100644
--- a/src/utilstrencodings.cpp
+++ b/src/utilstrencodings.cpp
@@ -16,7 +16,7 @@ using namespace std;
 
 // safeChars chosen to allow simple messages/URLs/email addresses, but avoid anything
 // even possibly remotely dangerous like & or >
-static string safeChars("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890 .,;_/:?@");
+static string safeChars("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890 .,;_/:?@()");
 string SanitizeString(const string& str)
 {
     string strResult;