[llvm-objdump] Add '--full-contents' as alias for '-s'

This fixes PR39404.

Reviewed By: jhenderson

Patch by Xing Guo

Differential Revision: https://reviews.llvm.org/D53576

llvm-svn: 345495
diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp b/llvm/tools/llvm-objdump/llvm-objdump.cpp
index 7107966..a4fddf3 100644
--- a/llvm/tools/llvm-objdump/llvm-objdump.cpp
+++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -116,7 +116,11 @@
              cl::aliasopt(DynamicRelocations));
 
 cl::opt<bool>
-llvm::SectionContents("s", cl::desc("Display the content of each section"));
+    llvm::SectionContents("full-contents",
+                          cl::desc("Display the content of each section"));
+static cl::alias SectionContentsShort("s",
+                                      cl::desc("Alias for --full-contents"),
+                                      cl::aliasopt(SectionContents));
 
 cl::opt<bool>
 llvm::SymbolTable("t", cl::desc("Display the symbol table"));