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, 2 insertions, 2 deletions

diff --git a/Source/cmInstallExportGenerator.cxx b/Source/cmInstallExportGenerator.cxx
index 31fd91a..2fef3a8 100644
--- a/Source/cmInstallExportGenerator.cxx
+++ b/Source/cmInstallExportGenerator.cxx
@@ -93,11 +93,11 @@ void cmInstallExportGenerator::ComputeTempDir()
       dest[0] = '_';
     }
     // Avoid windows full paths by removing colons.
-    cmSystemTools::ReplaceString(dest, ":", "_");
+    std::replace(dest.begin(), dest.end(), ':', '_');
     // Avoid relative paths that go up the tree.
     cmSystemTools::ReplaceString(dest, "../", "__/");
     // Avoid spaces.
-    cmSystemTools::ReplaceString(dest, " ", "_");
+    std::replace(dest.begin(), dest.end(), ' ', '_');
     this->TempDir += dest;
   }
 }