practracker: accept an extra line in nt_service_install()

Part of 30799.

scripts/maint/practracker/exceptions.txt

@@ -52,7 +52,7 @@ problem function-size /src/app/main/main.c:dumpstats() 102
 problem function-size /src/app/main/main.c:tor_init() 137
 problem function-size /src/app/main/main.c:sandbox_init_filter() 291
 problem function-size /src/app/main/main.c:run_tor_main_loop() 105
-problem function-size /src/app/main/ntmain.c:nt_service_install() 125
+problem function-size /src/app/main/ntmain.c:nt_service_install() 126
 problem file-size /src/core/mainloop/connection.c 5569
 problem include-count /src/core/mainloop/connection.c 62
 problem function-size /src/core/mainloop/connection.c:connection_free_minimal() 185