remove newline from logging statements. (#5022)

remove newline from logging statements in code. The LOG_* functions will now magically add it at the end.

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

src/meshUtils.cpp

@@ -94,4 +94,18 @@ bool isOneOf(int item, int count, ...)
     }
     va_end(args);
     return found;
+}
+
+const std::string vformat(const char *const zcFormat, ...)
+{
+    va_list vaArgs;
+    va_start(vaArgs, zcFormat);
+    va_list vaArgsCopy;
+    va_copy(vaArgsCopy, vaArgs);
+    const int iLen = std::vsnprintf(NULL, 0, zcFormat, vaArgsCopy);
+    va_end(vaArgsCopy);
+    std::vector<char> zc(iLen + 1);
+    std::vsnprintf(zc.data(), zc.size(), zcFormat, vaArgs);
+    va_end(vaArgs);
+    return std::string(zc.data(), iLen);
 }