message: indented to 80 cols, changed to inclusive regex, and moved phony declaration
diff: @@ -94,8 +94,8 @@ make distclean
  make style
  Format the MFEM C++ source files using Artistic Style (astyle).
  make tags
  - Generate a vi or Emacs compatible TAGS file in ${MFEM_DIR}/TAGS. Requires functional
  - "etags" and "egrep" in the user ${PATH}.
  + Generate a vi or Emacs compatible TAGS file in ${MFEM_DIR}/TAGS. Requires
  + functional "etags" and "egrep" in the user ${PATH}.
  endef
  # Save the MAKEOVERRIDES for cases where we explicitly want to pass the command
  @@ -745,6 +745,7 @@ style:
  exit $$err_code
  # Generate a TAGS table in $MFEM_DIR from all the tracked files
  +.PHONY: tags
  tags:
  ifndef ETAGS_BIN
  $(error Error could not find suitable 'etags', please install one \
  @@ -753,8 +754,8 @@ else ifndef EGREP_BIN
  $(error Error could not find suitable 'egrep', please install one \
  using your package manager)
  endif
  - $(eval MFEM_TRACKED_SOURCE = $(shell git -C $(MFEM_REAL_DIR) \
  - ls-files | $(EGREP_BIN) -v \(^\(data/\)\|\.\(png\|pdf\|ps\|ppt\|jpg\|txt\|mesh\|yml\|md\)\$\)))
  + $(eval MFEM_TRACKED_SOURCE = $(shell git -C $(MFEM_REAL_DIR) ls-files |\
  + $(EGREP_BIN) '(\.[hc](pp)?)$$'))
  @cd $(MFEM_REAL_DIR) && $(ETAGS_BIN) --class-qualify \
  --declarations -o $(MFEM_REAL_DIR)/TAGS $(MFEM_TRACKED_SOURCE)
  @@ -768,6 +769,6 @@ print-%:
  @true
  # Print the contents of all makefile variables.
  -.PHONY: printall tags
  +.PHONY: printall
  printall: $(subst :,\:,$(foreach var,$(.VARIABLES),print-$(var)))
  @true
  