libbpf_android/Loader.cpp - fixes performance-inefficient-string-concatenation warning

Fixes:
  system/bpf/libbpf_android/Loader.cpp:562:73: warning: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation]
          string progPinLoc = string(BPF_FS_PATH) + "prog_" + fname + "_" + name;
                                                                          ^

Test: builds
Bug: 153035880
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: If56405273b4904e632a4b3a465b79eecae4c1446
Merged-In: If56405273b4904e632a4b3a465b79eecae4c1446
1 file changed
tree: 3467e09d2c688c1c7bd6f2659b385e55cd0aed2d
  1. bpfloader/
  2. libbpf_android/
  3. progs/
  4. Android.bp
  5. MODULE_LICENSE_APACHE2
  6. NOTICE
  7. OWNERS
  8. PREUPLOAD.cfg