Use std::replace for replacing chars in strings.

Find uses of `cmSystemTools::ReplaceString` where both `replace` and
`with` are string literals with a size of one.

Automate with:

git grep -l ReplaceString | xargs sed -i "s|cmSystemTools::ReplaceString(\([^,]*\), \"\(.\)\", \"\(.\)\");|std::replace(\1.begin(), \1.end(), '\2', '\3');|g"
git grep -l ReplaceString | xargs sed -i "s|cmSystemTools::ReplaceString(\([^,]*\), \"\(.\)\", \"\\\\\\\\\");|std::replace(\1.begin(), \1.end(), '\2', '\\\\\\\\');|g"
git grep -l ReplaceString | xargs sed -i "s|cmSystemTools::ReplaceString(\([^,]*\), \"\\\\\\\\\", \"\(.\)\");|std::replace(\1.begin(), \1.end(), '\\\\\\\\', '\2');|g"

1 files changed, 3 insertions, 3 deletions

diff --git a/Source/cmCreateTestSourceList.cxx b/Source/cmCreateTestSourceList.cxx
index 6f7cfbe..d8c629c 100644
--- a/Source/cmCreateTestSourceList.cxx
+++ b/Source/cmCreateTestSourceList.cxx
@@ -95,9 +95,9 @@ bool cmCreateTestSourceList::InitialPass(std::vector<std::string> const& args,
       func_name = cmSystemTools::GetFilenameWithoutLastExtension(*i);
     }
     cmSystemTools::ConvertToUnixSlashes(func_name);
-    cmSystemTools::ReplaceString(func_name, " ", "_");
-    cmSystemTools::ReplaceString(func_name, "/", "_");
-    cmSystemTools::ReplaceString(func_name, ":", "_");
+    std::replace(func_name.begin(), func_name.end(), ' ', '_');
+    std::replace(func_name.begin(), func_name.end(), '/', '_');
+    std::replace(func_name.begin(), func_name.end(), ':', '_');
     tests_func_name.push_back(func_name);
     forwardDeclareCode += "int ";
     forwardDeclareCode += func_name;