fix coverage bug,test=document_fix (#47893)

tools/coverage/paddle_coverage.sh

@@ -50,8 +50,7 @@ function gen_full_html_report() {
         '/paddle/paddle/fluid/string/*' \
         '/paddle/paddle/fluid/eager/*' \
         '/paddle/paddle/phi/*' \
-        '/paddle/paddle/utils/*' \
-        
+        '/paddle/paddle/utils/*' \ 
         -o coverage-full.tmp \
         --rc lcov_branch_coverage=0
 
@@ -65,7 +64,6 @@ function gen_full_html_report() {
         '/paddle/paddle/fluid/inference/api/demo_ci/*' \
         '/paddle/paddle/fluid/eager/tests/*' \
         '/paddle/paddle/phi/tests/*' \
-
         -o coverage-full.tmp \
         --rc lcov_branch_coverage=0