fix(valgrind): Suppress Xrm warnings

.valgrind-suppressions

@@ -66,3 +66,20 @@
    ...
    ...
 }
+{
+   xresource manager
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:realloc
+   obj:/usr/lib/libX11.so.6.3.0
+   obj:/usr/lib/libX11.so.6.3.0
+   obj:/usr/lib/libX11.so.6.3.0
+   fun:_XlcCreateLC
+   fun:_XlcDefaultLoader
+   fun:_XOpenLC
+   fun:_XrmInitParseInfo
+   obj:/usr/lib/libX11.so.6.3.0
+   fun:XrmGetStringDatabase
+   ...
+   ...
+}

include/x11/xresources.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <X11/X.h>
 #include <X11/Xresource.h>
 
 #include "common.hpp"
@@ -22,8 +23,9 @@ class xresource_manager {
   string load_value(const string& key, const string& res_type, size_t n) const;
 
  private:
-  char* m_manager{nullptr};
+  Display* m_display{nullptr};
   XrmDatabase m_db;
+  char* m_manager{nullptr};
 };
 
 POLYBAR_NS_END

src/x11/xresources.cpp

@@ -22,13 +22,11 @@ xresource_manager::make_type xresource_manager::make() {
 xresource_manager::xresource_manager() {
   XrmInitialize();
 
-  if (xlib::get_display() == nullptr) {
+  if ((m_display = xlib::get_display()) == nullptr) {
     return;
-  }
+  } else if ((m_manager = XResourceManagerString(xlib::get_display())) == nullptr) {
-  if ((m_manager = XResourceManagerString(xlib::get_display())) == nullptr) {
     return;
-  }
+  } else if ((m_db = XrmGetStringDatabase(m_manager)) == nullptr) {
-  if ((m_db = XrmGetStringDatabase(m_manager)) == nullptr) {
     return;
   }
 }