diff --git a/lld/test/ELF/linkerscript.s b/lld/test/ELF/linkerscript.s
@@ -58,7 +58,7 @@
 # RUN: not ld.lld -o %t2 %t.script %t > %t.log 2>&1
 # RUN: FileCheck -check-prefix=ERR-ENTRY %s < %t.log
 
-# ERR-ENTRY: undefined symbol: _wrong_label
+# ERR-ENTRY: Undefined symbol: _wrong_label
 
 # -e has precedence over linker script's ENTRY.
 # RUN: echo "ENTRY(_label)" > %t.script
@@ -104,7 +104,7 @@
 # RUN: not ld.lld -o foo %t.script > %t.log 2>&1
 # RUN: FileCheck -check-prefix=ERR1 %s < %t.log
 
-# ERR1: unknown directive: FOO
+# ERR1: Unknown directive: FOO
 
 .globl _start, _label;
 _start:

diff --git a/lld/test/ELF/lto/duplicated.ll b/lld/test/ELF/lto/duplicated.ll
@@ -1,7 +1,7 @@
 ; REQUIRES: x86
 ; RUN: llvm-as %s -o %t.o
 ; RUN: not ld.lld -m elf_x86_64 %t.o %t.o -o %t.so -shared 2>&1 | FileCheck %s
-; CHECK: duplicate symbol: f in {{.*}}.o and {{.*}}.o
+; CHECK: Duplicate symbol: f in {{.*}}.o and {{.*}}.o
 target triple = "x86_64-unknown-linux-gnu"
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 

diff --git a/lld/test/ELF/sysroot.s b/lld/test/ELF/sysroot.s
@@ -9,7 +9,7 @@
 // Should not link because of undefined symbol _bar
 // RUN: not ld.lld -o %t/r %t/m.o 2>&1 \
 // RUN:     | FileCheck --check-prefix=UNDEFINED %s
-// UNDEFINED: undefined symbol: _bar
+// UNDEFINED: Undefined symbol: _bar
 
 // We need to be sure that there is no suitable library in the /lib directory
 // RUN: not ld.lld -o %t/r %t/m.o -L/lib -l:libls.a 2>&1 \

diff --git a/lld/test/ELF/tls-static.s b/lld/test/ELF/tls-static.s
@@ -10,4 +10,4 @@
 _start:
   call __tls_get_addr
 
-// CHECK: undefined symbol: __tls_get_addr
+// CHECK: Undefined symbol: __tls_get_addr
diff --git a/lld/test/ELF/undef-start.s b/lld/test/ELF/undef-start.s
@@ -1,4 +1,4 @@
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
 # RUN: not ld.lld %t -o %t2 2>&1 | FileCheck %s
-# CHECK: undefined symbol: _start
+# CHECK: Undefined symbol: _start
 # REQUIRES: x86
diff --git a/lld/test/ELF/undef.s b/lld/test/ELF/undef.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
 # RUN: not ld.lld %t -o %t2 2>&1 | FileCheck %s
-# CHECK: undefined symbol: bar in {{.*}}
-# CHECK: undefined symbol: foo in {{.*}}
+# CHECK: Undefined symbol: bar in {{.*}}
+# CHECK: Undefined symbol: foo in {{.*}}
 # REQUIRES: x86
 
   .globl _start