Address review comments

Author: kovdan01

llvm/test/tools/llvm-readobj/ELF/AArch64/aarch64-feature-pauth.s

@@ -1,7 +1,6 @@
 # RUN: rm -rf %t && split-file %s %t && cd %t
 
 #--- gnu-42-1.s
-
 .section ".note.gnu.property", "a"
   .long 4           // Name length is always 4 ("GNU")
   .long end - begin // Data length
@@ -45,7 +44,6 @@ end:
 # OBJ-NEXT: ]
 
 #--- gnu-0-0.s
-
 .section ".note.gnu.property", "a"
   .long 4           // Name length is always 4 ("GNU")
   .long end - begin // Data length
@@ -68,7 +66,6 @@ end:
 # RUN:   FileCheck --check-prefix=OBJ -DPLATFORM="0x0 (invalid)" -DVERSION=0x0 %s
 
 #--- gnu-1-0.s
-
 .section ".note.gnu.property", "a"
   .long 4           // Name length is always 4 ("GNU")
   .long end - begin // Data length
@@ -91,7 +88,6 @@ end:
 # RUN:   FileCheck --check-prefix=OBJ -DPLATFORM="0x1 (baremetal)" -DVERSION=0x0 %s
 
 #--- gnu-0x10000002-85.s
-
 .section ".note.gnu.property", "a"
   .long 4           // Name length is always 4 ("GNU")
   .long end - begin // Data length
@@ -116,7 +112,6 @@ end:
 # RUN:   -DVERSION="0x55 (PointerAuthIntrinsics, !PointerAuthCalls, PointerAuthReturns, !PointerAuthAuthTraps, PointerAuthVTPtrAddressDiscrimination, !PointerAuthVTPtrTypeDiscrimination, PointerAuthInitFini)" %s
 
 #--- gnu-0x10000002-128.s
-
 .section ".note.gnu.property", "a"
   .long 4           // Name length is always 4 ("GNU")
   .long end - begin // Data length
@@ -139,7 +134,6 @@ end:
 # RUN:   FileCheck --check-prefix=OBJ -DPLATFORM="0x10000002 (llvm_linux)" -DVERSION="0x80 (unknown)" %s
 
 #--- gnu-short.s
-
 .section ".note.gnu.property", "a"
   .long 4           // Name length is always 4 ("GNU")
   .long end - begin // Data length
@@ -185,7 +179,6 @@ end:
 # OBJ-ERR-NEXT: ]
 
 #--- gnu-long.s
-
 .section ".note.gnu.property", "a"
   .long 4           // Name length is always 4 ("GNU")
   .long end - begin // Data length

llvm/tools/llvm-readobj/ELFDumper.cpp

@@ -5156,12 +5156,12 @@ static bool printAArch64PAuthABICoreInfo(raw_ostream &OS, uint32_t DataSize,
                   "Update when new enum items are defined");
 
     std::string Desc;
-    for (uint32_t I = 0; I < Flags.size(); ++I) {
+    for (uint32_t I = 0, End = Flags.size(); I < End; ++I) {
       if (!(Version & (1 << I)))
         Desc += '!';
-      Desc += Twine("PointerAuth" + Flags[I] + ", ").str();
+      Desc +=
+          Twine("PointerAuth" + Flags[I] + (I == End - 1 ? "" : ", ")).str();
     }
-    Desc.resize(Desc.size() - 2); // Trim last ", "
     return Desc;
   }();