Update benchmarks/capi/GEOSPreparedContainsPerfTest.cpp

Co-authored-by: Brendan Ward <bcward@astutespruce.com>

benchmarks/capi/GEOSPreparedContainsPerfTest.cpp

@@ -91,7 +91,7 @@ class GEOSPreparedContainsPerfTest {
 int main(int argc, char** argv) {
     if (argc != 3) {
         std::cout << "perf_geospreparedcontains performs a specified number of point-in-polygon tests" << std::endl;
-        std::cout << "on randomly generated points from the bounding box of a each geometry provided" << std::endl;
+        std::cout << "on randomly generated points from the bounding box of each geometry provided" << std::endl;
         std::cout << "in a file as WKT." << std::endl;
         std::cout << std::endl;
         std::cout << "Usage: perf_geospreparedcontains [wktfile] [n]" << std::endl;