Tests/RunCMake/include: Match incidental line numbers more robustly

Tests/RunCMake/include/EmptyString-stderr.txt

@@ -1,5 +1,5 @@
 ^CMake Warning \(dev\) at EmptyString\.cmake:1 \(include\):
   include\(\) given empty file name \(ignored\).
 Call Stack \(most recent call first\):
-  CMakeLists\.txt:3 \(include\)
+  CMakeLists\.txt:[0-9]+ \(include\)
 This warning is for project developers\.  Use -Wno-dev to suppress it\.$

Tests/RunCMake/include/EmptyStringOptional-stderr.txt

@@ -1,5 +1,5 @@
 ^CMake Warning \(dev\) at EmptyStringOptional\.cmake:1 \(include\):
   include\(\) given empty file name \(ignored\).
 Call Stack \(most recent call first\):
-  CMakeLists\.txt:3 \(include\)
+  CMakeLists\.txt:[0-9]+ \(include\)
 This warning is for project developers\.  Use -Wno-dev to suppress it\.$

Tests/RunCMake/include/ExportExportInclude-stderr.txt

@@ -4,4 +4,4 @@
     [^
 ]*/Tests/RunCMake/include/ExportExportInclude-build/theTargets\.cmake
 Call Stack \(most recent call first\):
-  CMakeLists\.txt:3 \(include\)$
+  CMakeLists\.txt:[0-9]+ \(include\)$

Tests/RunCMake/include/IncludeIsDirectory-stderr.txt

@@ -4,4 +4,4 @@
     [^
 ]*/Tests/RunCMake/include/IncludeIsDirectory-build
 Call Stack \(most recent call first\):
-  CMakeLists\.txt:3 \(include\)$
+  CMakeLists\.txt:[0-9]+ \(include\)$

Tests/RunCMake/include/IncludeMalformed-stderr.txt

@@ -2,11 +2,11 @@
   Parse error\.  Function missing ending "\)"\.  End of file reached\.
 Call Stack \(most recent call first\):
   IncludeMalformed\.cmake:1 \(include\)
-  CMakeLists\.txt:3 \(include\)
+  CMakeLists\.txt:[0-9]+ \(include\)
 +
 CMake Error at IncludeMalformed\.cmake:1 \(include\):
   include could not load requested file:
 
     malformedInclude\.cmake
 Call Stack \(most recent call first\):
-  CMakeLists\.txt:3 \(include\)$
+  CMakeLists\.txt:[0-9]+ \(include\)$