Merge #10151: [logging] initialize flag variable to 0 (and continue if GetLogCategory() fails)

cd7f394 initialize flag variable to 0 (and continue if GetLogCategory() fails) (John Newbery)

Tree-SHA512: d0f2653bd0e71ed763220cb08d3a5335c5bdfe2f54ff7f9302d97f3265d7aa7f57606fe416a61aaac1535dbb046d0fb40a61f5a9d5cf234b042268e00ee7679d

Author: laanwj

src/init.cpp

@@ -910,9 +910,10 @@ bool AppInitParameterInteraction()
 
         if (find(categories.begin(), categories.end(), std::string("0")) == categories.end()) {
             for (const auto& cat : categories) {
-                uint32_t flag;
+                uint32_t flag = 0;
                 if (!GetLogCategory(&flag, &cat)) {
                     InitWarning(strprintf(_("Unsupported logging category %s=%s."), "-debug", cat));
+                    continue;
                 }
                 logCategories |= flag;
             }
@@ -923,9 +924,10 @@ bool AppInitParameterInteraction()
     if (mapMultiArgs.count("-debugexclude") > 0) {
         const std::vector<std::string>& excludedCategories = mapMultiArgs.at("-debugexclude");
         for (const auto& cat : excludedCategories) {
-            uint32_t flag;
+            uint32_t flag = 0;
             if (!GetLogCategory(&flag, &cat)) {
                 InitWarning(strprintf(_("Unsupported logging category %s=%s."), "-debugexclude", cat));
+                continue;
             }
             logCategories &= ~flag;
         }